An hour and a half after waking, early birds and night owls were equally alert and showed no difference in attention-related brain activity. But after being awake for 10 and a half hours, night owls had grown more alert, performing better on a reaction-time task requiring sustained attention and showing increased activity in brain areas linked to attention.

Links

Early Risers Crash Faster Than People Who Stay Up Late (via Lifehacker)

Studies have demonstrated that poor sleep and susceptibility to colds go hand in hand, and scientists think it could be a reflection of the role sleep plays in maintaining the body’s defenses.

I’m doomed.

Links

The Claim: Lack of Sleep Increases the Risk of Catching a Cold. | The New York Times

via Lifehacker