For her new research on the brain’s plumbing system, neuroscientist Maiken Nedergaard had to hone many techniques. Among them — coaxing her lab mice into restful sleep, even as they lay on microscope beds with tiny fiberoptic wires threaded into their brains.
“It was really hard to get the mice to sleep naturally,” said Nedergaard, who spent weeks cuddling the animals in her hands, so they’d learn to feel safe. “But then we said, ‘we really want to not have them disturbed.’”
The reason for this care? Nedergaard studies the glymphatic system, which removes waste from the brain during sleep, so ensuring her test subjects achieve a restorative snooze is central to her work.