Sleep Cycles – From Wikipedia

Sleep Cycles – From Wikipedia

Sleep cycles, REM indicated in red. Sleep progresses in a cyclical fashion through five stages. Four of these stages are collectively referred to asnon-rapid eye movement (NREM) sleep whereas the last cycle is a rapid eye movement period. A cycle takes approximately...
More Reason To Sleep On It: Sorting Out The Brain’s ‘Inbox’

More Reason To Sleep On It: Sorting Out The Brain’s ‘Inbox’

Imagine you’re cleaning off your desk. You sort some papers into folders with the relevant labels. Others you red-tag as “urgent” or yellow-tag as “semi-urgent.” Quite a few go directly into the large circular file at your feet, also known as the trash basket. Turns...
Anger Can Set Off a Heart Attack

Anger Can Set Off a Heart Attack

 In the two hours after an outburst of anger, the relative risk of angina and heart attack increased by nearly five times Angry enough to have a heart attack? It might actually happen. A new analysis has found that outbursts of anger can significantly increase the...