IS IT time to dream up a fresh theory of sleep? We are all familiar with the concept a power nap, but it could be the very process of falling asleep that’s beneficial to the brain. Perhaps sleep itself is a mere side effect.
“A nap of just 10 minutes can reduce drowsiness, even though most models of sleep suggest you need more time to see an effect,” says Derk-Jan Dijk at the University of Surrey, UK. “It’s an anomaly – there is a discrepancy between how much sleep we think we need and the data.”
Now, Olaf Lahl at the…
