A neural signature to predict attention shifting delays in children and adults

Nature Neuroscience, Published online: 08 June 2026; doi:10.1038/s41593-026-02295-z

Moment-to-moment lapses in attention shifting impair behavior and learning. These lapses are common in individuals with neurodevelopmental disorders involving attention deficits. We identify a neural signature that predicts delayed performance on a set-shifting task and show that real-time closed-loop neuromodulation can prevent lapses and improve performance.

GLP-1 Drugs Lower Risk of Death by 44% in Obesity and Autoimmune Disease

An analysis of electronic health records from over 26,000 adults with obesity and at least one autoimmune disease has shown that those taking GLP-1 medication experienced fewer cardiac events, were less likely to visit the ER, and had a lower risk of death. These findings were published today in the Journal of the American Heart Association and presented at the American Diabetes Association 2026 Scientific Sessions in New Orleans. 

“This is a high-risk population, and historically we’ve had limited data to guide treatment decisions,” said Amy Sheer, MD, associate professor of medicine and director of the Obesity Medicine Fellowship program at the University of Florida. “In this real-world analysis, we found a consistent signal toward fewer serious complications including blood clots and lower mortality among patients treated with GLP-1 receptor agonists. For people who are overweight or living with obesity and an autoimmune disease, this study offers a hopeful signal that medications already in use today may be beneficial in reducing their risk of cardiovascular disease.”

GLP-1 receptor agonists are commonly prescribed drugs to help patients with type 2 diabetes lose weight and manage their blood sugar levels. This study is the first to examine the potential cardiovascular benefits of these drugs in a high-risk population of patients with both obesity and an autoimmune disease—both of which are associated with a higher risk of cardiovascular and blood clot events. 

Sheer and colleagues reviewed electronic health record data from 26,408 adults treated in the OneFlorida+ network from 2014 to 2024, covering 14 healthcare organizations across Florida, Georgia, and Alabama. Half of the patients were taking GLP-1 drugs over this 10 year period, while the other half did not. 

Across this population, GLP-1 treatment was found to reduce the risk of blood clots by 17%, of pulmonary embolism by 31%, and of death by 44%. Visits to the emergency department were also lowered by 21%, and a modest decrease in stroke risk of 13% was also found. 

“The 44% reduction in all-cause mortality observed among patients with obesity and co-occurring autoimmune disease is a striking finding that demands our attention,” said Fatima Cody Stanford, MD, associate professor of medicine and pediatrics at Harvard Medical School, who was not involved in the study. “As an obesity medicine physician scientist who regularly cares for patients with complex inflammatory conditions, this study reinforces what many of us have suspected clinically—that the benefits of GLP-1 receptor agonists extend well beyond blood sugar control and weight loss and may fundamentally alter the disease trajectory for some of our highest-risk patients.”

Although this study cannot prove a causal link between GLP-1 medication and the effects seen on the patients taking them, it opens the door to future combinations of treatments for autoimmune disease with GLP-1 drugs. More research is still needed to understand the role this medication could play as a potential preventive therapy for high-risk patients.

“Our research broadens the conversation around GLP-1 receptor agonists,” said Sheer. “For clinicians, we hope these findings may prompt a more thoughtful, individualized approach when considering these therapies in higher-risk patients who have both obesity and autoimmune disease.”

The post GLP-1 Drugs Lower Risk of Death by 44% in Obesity and Autoimmune Disease appeared first on Inside Precision Medicine.

Awakening from the Trance

This blog was originally posted by the TLC Foundation for BFRBs

Trichotillomania touches on all levels of human experience, from the neurological to the spiritual. It represents the interactions of brain chemistry, but also habituated physiological responses, sensory processing, behavior patterns, characteristic emotional states, perceptual styles and beliefs, and the sense of interconnectedness with others and the experience of faith. It is more than just a behavior, although it is most apparent when it manifests itself in that way.

Trichotillomania can be treated at all of these levels through different treatment approaches: medication, relaxation and response prevention, behavior modification, hypnotherapy, psychotherapy, cognitive therapy and visualization, group therapy and spiritual practices. The most effective approach will depend on the specific needs and circumstances of each individual at specific times, as well as on the compatibility of the personalities of the treatment provider and patient/participant.

In this article I will present my own view of treatment with a particular focus on how to understand and address the aspect of trance.

“Trance” is not a clinical term, but it is one which most pullers seem to recognize immediately as a significant part of the hair pulling experience: particularly when reading or watching TV. However, I believe that any time one is pulling, one has entered a trance state and that trance states occur with great frequency even at other times. To look at how to make use of this concept I will first describe what I think treatment needs to address.

Trichotillomania as a symptom: My approach is to look at what the behavior of pulling means to a particular person, and what it means about them. I view pulling as a symptom which indicates something about what is going on in that person’s life and can be best understood if we look at the context in which it occurs – both over time (how did it evolve), and ecologically (how does it fit into the network of the person’s relationships, commitments, self-perceptions, experiences of their own body and emotional states, etc.).

Symptoms are an indication of the existence of some other process. Just as a fever may reflect a viral infection, a repetitive behavior reflects an underlying mental activity. The symptom develops in response to the activity and one of its functions is to achieve some control over the consequences of that mental activity. I believe that trichotillomania indicates an attempted solution to a psychological challenge (or opportunity) one is facing in one’s life. However, it is an ineffective solution for two reasons. Firstly, it doesn’t alter the situation which has become challenging, and so the underlying causes remain unchanged. Secondly, by drawing attention onto itself it obscures those underlying causes. It distracts attention from them.

But the behavior, none the less, does have some purpose and utility. It relieves the anxiety of becoming too aware that there are challenges and opportunities which one feels unprepared to confront.

The role of emotions:

The mechanism which could be drawing one’s attention to these challenges and opportunities is the experience of emotional reaction. Emotions serve to amplify our perceptions of situations by making the good seem better and the bad seem worse. In that way, they lead us to focus on what is important to us so that we will take action. Being able to notice and interpret our emotions is something we learn as we grow up. Emotions represent a kind of language for helping us make meaningful choices as we engage with life.

But if these emotions were felt to be too overwhelming – if what they indicated felt too bad to be tolerated because we did not learn how to resolve the situations they drew attention to – then we eliminated them from our emotional vocabulary and we restricted our awareness of them. Now, when those situations reoccur, rather than notice our feelings of hopelessness and helplessness, we may turn to other mechanisms, more basic ones rooted in physical sensations, to occupy ourselves and restore some sense of order to the world.

So, in this model, the behavior of hair pulling is not an indicator of psychological inadequacy, but rather a lack of awareness. It reflects a split between awareness/thoughts and sensations/feelings. It is the result of an unknown mental process, something one has not been able to assimilate into one’s conscious thought, for which no words or language have been developed.

If this could be understood then I believe there would be less justification for feelings of shame connected with Trichotillomania, because Trichotillomania represents an underlying process outside of personal awareness, and thus is not something voluntarily chosen. (It would also answer the following disturbing statement frequently made to hair pullers: “You could stop if you really wanted to.”)

I have so far described how emotional activity and unconscious thoughts affect us in ways which we do not recognize. Despite this lack of recognition, we still need to adjust to them and regulate or organize ourselves. A good example of this is the way in which a fussy baby, if not picked up or fed when it wants to be, learns to get its thumb into its mouth and suck on it. It is finding a way to organize its reactions to its world by retreating into an attitude of self-sufficiency. In this way it solves the problems of the conflict it experiences between the emotions it feels and the lack of a way to take effective action about them in the outside world. It restores order by returning to a sensation-based activity which it has control over. It has learned to retreat into a trance.

The similarities between this example and the experience of hair pulling are striking. So how is Trichotillomania like a trance, exactly?

Trance:

The (Oxford) dictionary defines “trance” in these ways: a suspension of consciousness; a state of mental abstraction from external things; absorption, exaltation, rapture, ecstasy. Going into a trance is turning away from the world, suspending engagement with it, and entering a twilight zone of self-enchantment. The experience is one of being in between states: neither in one’s own mind, nor aware of one’s body. One has turned away, both from the rest of the world and from the rest of oneself.

It is a state in which one doesn’t think about what one feels, and doesn’t act on what one feels. One has turned away from the parts of the self which are concerned with action and purposefulness. In the trance state, a part of the personality takes over which doesn’t care about anything (except the act of pulling) and ignores the existence of time or consequences to one’s actions. It is the opposite of the perfectionist attitude so common to many hair pullers. Becoming entranced in the act of reading, for example, one detaches from the here and now, and allows this part of the personality to “come out”: while the cat’s away, the mouse plays. It is a secure, dependable, magical place in which one can avoid dealing with the stimulation of one’s spontaneous emotional responses to life.

If we look again at the role of emotions as amplifiers of perceptions, we see that what is happening in this state is that one is neither thinking about, nor acting on, what the emotions could be indicating. And as they indicate what is important so that action can be taken, the trance state eliminates the possibility of taking the action required.

How does this detaching process become chronic?

I believe it is the result of repeated experiences of failing to take effective action on what one’s emotions tell one is important. This failure can have many causes, but the result is that these important situations become perceived as challenging and threatening because they are felt as over stimulating. To protect oneself from discomfort, one disassociates from the situation. The part of oneself which perceives or feels what is going on is split off from consciousness. What remains conscious is the part which doesn’t feel and which preserves a sense of order and calm. Gradually, a gap develops between this external presentation of the self – as coherent, caring, positive – and an inner state of feeling confused, frustrated, and overwhelmed.

A false self develops, a self which appears to be more in control than is actually felt, and which one tries to believe in. The fear of having this façade penetrated adds greatly to the level of stress felt by hair pullers. Because this false self cannot be dropped when one’s gut reactions tell one to, one becomes trapped in a vicious circle that leaves one over stimulated (including the times when one merely seems to be bored), detaching from one’s body, and trying to regain control. A strong need is felt to reconnect to the body and feel grounded.‍

Trichotillomania as a return to the body:

The route to feeling in one’s body again is through becoming hyperaware and hypersensitive to sensation. This is a more basic and elementary experience of oneself: one cannot think or feel what is happening, so one uses a physical behavior to establish a link between unconscious inner experience and being in the real, physical world. This provides a solution to the twilight state of feeling detached. The sensation-focused behavior provides a substitute sense of being connected, and its ritualistic aspect creates a sense of soothing order rather than chaos.

So, looked at in this way, the act of pulling a hair actually represents the second stage of entering into a trance. The trance is triggered by the habitual reaction of disassociating rather than facing a situation which one perceives as overwhelming. But while an attitude of order and calm is being adopted (a state of “mental abstraction”), the experience of being detached from the feelings in the body becomes disorienting and the urgent need is felt to focus on the sensation of touching, playing with, and pulling hair. This provides the experience of concreteness and connectedness which allows the trance to continue.

Awakening:

What is needed is a process for regaining consciousness and turning back to engaging with life. How does one wake up? How can one build a sort of observational platform from which to watch the process of entering into a trance; one which can be separate from the process itself? I would suggest that rather than start with the ultimate goal of avoiding trance states altogether (which may be unreachable), a more pragmatic approach would be to learn how to wake up once one starts.

When we drive long distances on freeways and our attention wanders, we sometimes find ourselves drifting over into the next lane. If there were raised lane markers on the road, they would then alert us by causing a noise and a vibration as the car drove over them. That is the kind of alarm system we are looking for. It doesn’t prevent our minds from wandering, but it brings us back to the here-and-now experience before we get into trouble.

Such a system does exist: it is the sensation of a hair being pulled out. Once one hair is pulled, the opportunity exists to break the trance. That hair can be a signal to come back to the here and now rather than getting into the trouble of starting a pulling binge. (The goal of stopping at one hair pulled would also very likely include the benefit of making it much easier to commit to a realistic process of bringing the behavior within tolerable limits.)

How can one learn to stop at just one? Setting such a goal becomes much more possible if one understands one’s reasons for avoiding the goal until now. I have discussed in this article how Trichotillomania is a process which provides an attempted solution to an underlying tension. There is an inevitable anxiety about relinquishing a familiar, dependable behavior. A part of oneself therefore resists changing it and depends on the benefits it brings. This part has no intention of allowing any changes to occur unless one is prepared for the emotional experiences that follow, and it protects one from them.

A way to understand this resistance to change would be to think of the patterns of our behavior as a balanced mobile hanging from the ceiling. All its parts are interconnected and form a stable pattern. If we remove one of the parts, all of the others start to swing wildly until they settle into a new, substantially different formation. The intermediate stage of unbalanced, indeterminate movement could be likened to the feeling of overstimulation from one’s emotions when the ritualistic trance is denied.

To prepare for this change, an expanded awareness of emotional experience and what it teaches is indispensable. The remainder of this article offers some suggestions for work that can be done alone to expand this ability. This task is made much easier and more effective, however, when it is done in the context of a healing dialogue: either in individual or group therapy, or in a support group. This option deserves serious consideration because the act of communicating to another person helps bring one’s inner experiences into focus. Additionally, when there is the trust that the other person is willing not only to listen but to actively attempt to grasp what the speaker means from the speaker’s own point of view, the feeling of validation and recognition received makes awareness of the emotional states more bearable.

Reading the signals:

Part of the personal preparation which can be done is to establish intent to learn from what is found when one tries to read the signals. This would require a willingness to recognize that there are good reasons for what one feels rather than prejudging emotions as wrong, inappropriate, or proof of all the “bad” things one has come to believe about oneself. It also requires a willingness to feel discomfort, hurt, and vulnerability so that there can be a return to wholeness and the sense of being fully alive.

1. The most direct step is simply to ask yourself questions such as: What am I feeling? What is on my mind? Is something bothering me? What do I want right now? Is there something I should be doing? Special attention should be paid to the first answer that comes to mind, even if it very quickly disappears or seems insignificant. You should have an open mind and be prepared to be surprised. Before asking yourself these questions, stop the activity you are doing, if possible. If answers do not emerge the following techniques can be tried.

2. Let your body speak. Allow yourself to become aware of where you feel tension or discomfort. Imagine that that part of you has a voice and can answer the questions in Step One. Try asking follow-up questions to learn more.

3. Try exaggerating the physical state that you are in. That is, whatever movement your body is making or would like to make, take it to an extreme as if you were a very melodramatic actor or dancer who had no inhibitions. Again, think about how your body is expressing answers to the questions in Step One.

4. Visualize yourself as a child of about five and ask the questions of her or him. The answers should seem to be in the language of a 5-year-old. It might help to hold an object such as a cushion or stuffed animal to you as you try to make contact with yourself in this way. It also might help to combine this with some exaggeration of body expression. Additional questions you might ask could be: What do you need from me? Is somebody upsetting you? (See Reference 1.)

5. Write a question to the child, then switch your pen to your other hand and write the answer with that hand. You should write very quickly and with no attempt to make the writing more legible. Then switch your pen back to your original hand for a further question. Continue the dialogue, and the switching of hands, until no further clarification is necessary. The purpose of this technique is to facilitate the spontaneous flow of ideas. (See Reference 2.)

6. Write out the questions as complete sentences to be completed and complete the same question five times as quickly as possible. The questions would be rewritten as follows: Right now, I want….; or: I am upset because…. Allow any response to come forward. Often, a few unrevealing responses will be followed by one unexpected and more valuable one. (See Reference 3.)

7. Hold the hair which has just been pulled out and ask yourself: What did this hair give itself up for? A significant reason for the failure to stop hair pulling is the frequent presence of trance states, which enable one to deny the consequences of the behavior. Additionally, the experience of trance encourages one to focus on physical sensations such as the feeling of a hair being pulled, so as to achieve a greater sense of being connected to reality.

I have described how one enters a trance when certain situations trigger a habituated expectation of becoming overwhelmed. In self-defense one suspends consciousness of the challenge and retreats into a state of emotional detachment. The alternative to the trance, then, is to identify and assimilate the emotional cues about the situation so that appropriate action can be taken. The sensation of the first hair being pulled can serve as an alarm to awaken one from the trance and begin this process of self-evaluation and a return to an alert engagement with life.

Reference 1: Margaret Paul. Inner Bonding. San Francisco: Harper Collins, 1990.Reference 2: Lucia Cappachione. The Power of Your Other Hand. North Hollywood, CA: Newcastle Publishing, 1988.Reference 3: Nathaniel Branden. How to Raise Your Self-Esteem. New York: Bantam, 1987.

The post Awakening from the Trance appeared first on International OCD Foundation.

The Download: AI hacking beyond Mythos, and chatbots’ impact on our brains

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

The Meta hack shows there’s more to AI security than Mythos

On Monday, reports emerged that attackers had used Meta’s AI customer support agent to steal Instagram accounts. Their approach was simple: they asked the agent to link the accounts to email addresses they controlled, and it complied.

Since Anthropic announced that its Mythos model was too good at hacking for a general release, cybersecurity concerns have focused on the risk of superpowered AI systems overwhelming computer infrastructure. But the Instagram hack shows that far simpler exploits can still cause damage.

As companies offload more work to AI, these comparatively unsophisticated attacks are becoming harder to ignore. Read the full story to understand why.

—Grace Huckins

Are AI chatbots making us lose control of our brains?

Gloria Mark, a psychologist at the University of California, Irvine, fears that digital technologies are weakening our cognitive abilities.

Her research suggests attention spans have fallen sharply over time, leading to higher stress and lower performance. She now believes AI tools like ChatGPT and Claude may accelerate this shift. “You’re deferring your cognitive work to AI,” she said. “And it’s not good for us.”

Mark argues this could weaken critical thinking and emotional intelligence. Luckily, she thinks we can course-correct by changing our relationship with these technologies.

Find out how AI could reshape attention and thinking.

—Jessica Hamzelou

This story is from The Checkup, our weekly newsletter giving you the inside track on all things biotech. Sign up to receive it in your inbox every Thursday.

The must-reads

I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology.

1 Anthropic has called for a global slowdown in AI development
It flagged the risk of models “self-improving.” (WSJ $)
+ And wants a coordinated plan to stop them. (Reuters $)
+ Skeptics note that the timing is awfully convenient. (The Register)

2 In a first, scientists have precisely edited human embryo genes
They relied on a newer gene-editing technique. (NYT $)
+ Genetically-modified babies could be on their way. (Guardian)
+ Companies have big plans for the technology. (MIT Technology Review)

3 US officials have discussed taking financial stakes in the AI firms
They’ve held talks about the government acquiring shares. (Reuters $)
+ Sam Altman pitched the idea to the White House last year. (WSJ $)

4 Bot web traffic has overtaken human web traffic
Cloudflare said 57.4% of traffic now comes from bots. (NBC News)
+ Its CEO expected the milestone at the end of 2027. (CNET)

5 The White House plans to bring AI doctors into American medicine
It wants chatbots to diagnose illness and prescribe medicine. (WSJ $)
+ But we don’t even know if healthcare AI actually helps patients. (MIT Technology Review)

6 Meta quietly added facial recognition code for smart glasses to its app
The exploratory feature would identify people via biometric data. (Wired $)
+ Smart glasses are also entering warfare. (MIT Technology Review)

7 South Korea’s labour minister wants tech firms to share AI profits
Kim Young wants staff and suppliers to get a share. (Reuters $)
+ He helped avert a huge strike over AI profit-sharing at Samsung. (NYT $)

8 Canada’s highly-anticipated AI strategy has launched
It promises over $2 billion in funding and aims to create 250,000 jobs. (BBC)
+ AI could strengthen democracy. (MIT Technology Review)

9 Investment in agricultural tech is booming
That’s good news at a time when we’re facing unprecedented levels of food market volatility. (The Economist $)

10 Bumblebees can use tools to solve problems, new research shows
Not just busy—they’re clever too! (Guardian) 

Quote of the day

“Welp, that happened faster than I predicted.” 

—Matthew Prince, co-founder and CEO of Cloudflare, one of the largest internet hosting services, reacts on X to reports that bots have overtaken humans in driving web traffic.

One More Thing

ASML machine

CHRISTOPHER PAYNE


Inside the machine that saved Moore’s Law

In a Connecticut clean room, the Dutch company ASML is developing the world’s most advanced machine for extreme ultraviolet (EUV) lithography, a crucial process for manufacturing microchips.

The system has become vital to Moore’s Law—the observation that the number of transistors on a chip roughly doubles every two years as components shrink, driving gains in performance and efficiency. “Without this machine, it’s gone,” says Wayne Lam, a director of research at CCS Insight. “You can’t really make any leading-edge processors without EUV.”

Discover how ASML’s EUV technology saved Moore’s Law.

—Clive Thompson

We can still have nice things

A place for comfort, fun, and distraction to brighten up your day. (Got any ideas? Drop me a line.)

+ Tech bosses love Tolkien. Here’s what the writer might think of them.
+ Rare footage captures an underwater volcano erupting beneath the Pacific Ocean.
+ Watch a tiny rescued cub grow into adulthood in this heartwarming tiger compilation.
+ This medieval version of “Take On Me” is like stepping into a tavern of synth-pop bards.

Enhancing seizure prediction using a DC-SA-EBiLSTM framework with self-attention mechanism

BackgroundAccurately predicting seizures remains challenging. With advances in smart medical technology, EEG-based monitoring has become essential. This study aims to improve prediction accuracy using a hybrid framework that models multiscale EEG characteristics.MethodsEEG signals are decomposed into multiple sub-bands using the Discrete Wavelet Transform, and representative time-frequency and nonlinear features are extracted. These features are fed into a channel-centric model integrating depthwise separable convolution, self-attention, and an enhanced bidirectional long short-term memory network (DC-SA-EBiLSTM). The architecture integrates depthwise separable convolution for local spatial feature extraction, multi-head self-attention for global inter-channel dependencies, and an enhanced BiLSTM for channel-wise sequence modeling. The proposed method was evaluated on the CHB-MIT dataset using a 10-fold cross-validation protocol. An event-level leave-one-seizure-event-out validation was also conducted to assess alarm-based prediction performance.ResultsThe proposed approach achieved an average accuracy of 95.89%, sensitivity of 96.70%, specificity of 95.48%, and AUC of 99.02%. In the event-level validation, the model achieved an event sensitivity of 95.96%, an average false alarm rate of 0.316 FPR/h, and a mean early warning time of 30.52 min.ConclusionThe DC-SA-EBiLSTM framework effectively captures local and global inter-channel dependencies and provides a feature-driven approach for patient-specific preictal state prediction, showing potential for EEG-based seizure prediction.

Exploring ceramide as a novel biomarker and therapeutic target for Alzheimer’s disease

Metabolic dysregulation is increasingly being recognized as a hallmark across various neurodegenerative diseases. While Alzheimer’s disease (AD) is well-established as a dual proteinopathy characterized by amyloid-beta (Aβ) deposition and tau protein tangles, the specific mechanisms mediating lipid homeostasis imbalance have garnered increasing attention. However, translating these findings into safe clinical therapeutic targets remains a formidable challenge, primarily hindered by the pleiotropic roles of ceramides in maintaining neural and immune homeostasis, as well as the blood–brain barrier (BBB) penetration issues and systemic safety limitations of current sphingolipid-targeting strategies. We conducted a comprehensive search of electronic databases, including PubMed, Web of Science, and Google Scholar, to identify relevant studies published from database inception through March 2026. The search term combinations included: “Alzheimer’s disease,” “AD,” “ceramide,” “sphingolipid metabolism,” “biomarker,” “therapeutic target,” “neuroinflammation,” and “mitochondrial dysfunction.” To ensure the depth and rigor of this review, priority was given to peer-reviewed original research, systematic reviews, and meta-analyses. The search was restricted to English-language literature. Additionally, the reference lists of retrieved articles were manually screened to identify further relevant studies. This narrative review aims to comprehensively elucidate the potential roles of ceramides in AD pathogenesis, exploring their associations with triggering inflammatory responses, mediating apoptosis, interfering with signal transduction, and inducing mitochondrial dysfunction.

Are AI chatbots making us lose control of our brains?

This week I’ve been at SXSW London. There’s been music, film, and a lot—and I mean a lot—of talk about AI. I also had the opportunity to sit down with Gloria Mark, a psychologist at the University of California, Irvine, who has spent the last 30 years studying how people interact with digital technologies.

Early in her career, the biggest concerns were the potential impacts of internet and email use on our brains. We may laugh those concerns off today, but it’s true that as the technologies became more ubiquitous and ingrained in our daily lives, our attention spans began to shrink.

Mark is worried that things are only getting worse. The title of our session was “Have we lost control of our brains?” Unfortunately, Mark told me, the answer is yes.

Around two decades ago, Mark started wondering about how our use of devices might affect our attention spans. She set up what she calls “living laboratories,” using sensors and trackers to monitor adult volunteers’ attention, mood, and behavior when they were using devices.

In 2003, she found that the average user had an attention span of around two and a half minutes. That’s how long people could spend focused on one thing before moving on to something else. “That surprised me at the time,” she told me during our session on Wednesday. “I thought: Wow, this is really short.”

But when she repeated the experiment in 2012, she found that attention spans had shrunk—all the way down to around 75 seconds on average, she said. In research she conducted between 2014 and 2020, attention spans shrank further still—to a mere 47 seconds, on average. Yikes.

And it’s not good for us. Mark told me that she’s found switching our attention so frequently is stressful. “We would have people wear heart rate monitors, and … we would see direct correlation between switching attention fast and stress going up,” she told me.

All this distraction makes it harder for us to get stuff done, too. “It just takes longer to do any single task if you’re switching your attention,” she told me. “It’s not great for performance. It’s not great for our emotional well-being.”

And that’s for adults. What about the effects of digital technologies on children? A few months ago, Meta (which owns Facebook and Instagram) and Google’s YouTube were ordered to pay millions of dollars in damages to a 20-year-old woman who had accused the companies of creating products that led her to develop a childhood addiction.

Just a couple of weeks ago, Meta settled another lawsuit, this one brought by a rural school district in Kentucky. The district had also accused the company of designing addictive products that were harmful to students and had sought more than $60 million to cover the costs of their mental-health needs. Around 1,200 other school districts are taking similar legal action against social media companies.

But social media isn’t all bad, all the time. It can provide opportunities for some people, including those from marginalized groups, to form connections that might otherwise be difficult. A 2024 survey of LGBTQ+ teenagers found that while some described social media as a place of rejection and fear, others described it as a place where they felt a sense of belonging, where they could develop friendships and cultivate their identity.

In truth, we can’t definitively say what effects using social media is having on children across the board, says Mark. “There have been lots and lots of studies, and the evidence is to date inconclusive,” she told me. (Despite what you might read in best-selling books on the subject.)

Mark is hopeful that large, long-term studies might finally start shedding a bit more light on this question. An effort of this nature is underway in Australia, which enacted a social media ban for under-16s at the end of last year.

Given this uncertainty over a 20-year-old technology, I wondered if Mark had any thoughts on the potential impacts of AI—an obviously much newer offering that within the space of a couple of years appears to have become deeply integrated into our digital lives.

She told me she’s worried.

When we put in effort to do something—such as evaluating or summarizing content—we’re doing what’s known as “depth of processing,” she told me. “When you’re actively engaged with information, you’re processing it on a very deep level,” she said. “Then you’re more likely to learn it, to understand it, [and] to retain it.”

That’s not happening when most people use AI bots like ChatGPT, Claude, and Gemini. When we ask these tools to write, summarize, or evaluate for us, we’re no longer doing that depth of processing. “You’re deferring your cognitive work to AI,” she said. “And it’s not good for us.”

The risk is that our cognitive abilities will weaken over time. “If you’re not constantly exercising your muscles, they can atrophy,” Mark said. “And that’s exactly what can happen with our minds.” People with weaker critical thinking skills are more likely to fall prey to misinformation, she added.

Interactions with AI-powered “synthetic companions” can be just as harmful. Relationships between human beings take work—time, effort, and understanding. None of that is needed if you’re forming a relationship with a sycophantic bot. The “muscle” we risk atrophying here is emotional intelligence, which surveys suggest is already on the decline, said Mark.

She’s not painting a particularly rosy picture.

“If we continue on this trajectory, attention spans are diminished, loneliness is rising, boredom is rising, emotional intelligence decreasing, and actually our sense of purpose, according to studies, is also decreasing,” she said.

Luckily, she thinks we can course-correct by changing our relationship with these technologies. The key factor is effort.

The more effort we put into something, the deeper the satisfaction we stand to gain, Mark told me. That means making an effort to read a book rather than skimming its summary, and to meet with friends in person when you can. Try not to use GPS in places where you can probably manage without it.

“I love technology; we can’t give it up,” she told me. “[But] we have to learn how to create new life routines.”

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Differences in brain functional connectivity between autonomous sensory meridian response and classical music

Autonomous sensory meridian response (ASMR) is a tingling sensation that originates in the occipital region and spreads along the neck and spine, elicited by specific audiovisual stimuli known as ASMR triggers. The characteristics of ASMR-related changes in brain activity relative to other external stimuli, and whether these changes are specific to ASMR, remain unclear. The aim of this study is to compare changes in functional connectivity during exposure to ASMR triggers and classical music, and to clarify the changes in connectivity that are more strongly associated with ASMR trigger listening. Forty-eight healthy adults without a history of psychiatric disorders underwent functional MRI under three conditions: resting state without auditory stimulation, listening to ASMR triggers, and listening to classical music. Functional connectivity during the ASMR and classical-music conditions was assessed relative to the resting state. As a result, functional connectivity between the medial prefrontal cortex and the right lateral parietal cortex increased during ASMR trigger listening compared to rest. Relative to classical music listening, ASMR trigger listening increased functional connectivity between the medial prefrontal cortex and the right lateral parietal cortex, between the left anterior insula and left supramarginal gyrus, and between the right rostral prefrontal cortex and the anterior cingulate cortex. No significant changes in functional connectivity were observed during classical music listening alone. These findings suggest that, compared with classical music listening, ASMR trigger listening is associated with stronger functional connectivity between specific ROI pairs involved in self-referential/internal evaluative processing and sensory integration.