Sleep Is a Performance Drug Sleep Is a Performance Drug It sharpens focus, steadies mood and speeds up recovery. It's legal, free, and most overworked twenty-somethings are underdosing it. Health · 7 min read When the to-do list wins, sleep is the first thing to go. It looks like the most flexible line in the budget. It isn't. A short night quietly taxes attention, memory, mood and appetite, and the tax hits hardest on the days you can least afford it. The good news is that sleep is not a mystery blob of "hours." It has a structure, and once you can see the structure, you can work with it. One night, in cycles You don't sink into sleep and stay there. You move through a loop of stages, roughly every 90 minutes, four to six times a night. The chart below is a hypnogram: a typical night, drawn as a line that dives down into deep sleep and bobs back up. Awake REM Light Deep 0h 2h 4h 6h ...
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