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24 Facts On Napping

psych-facts:

1. Abandon all-nighters - Foregoing sleep by cramming all night reduces your ability to retain information by up to 40%. If you can, mix in a nap somewhere to refresh your hippocampus.
2. It doesn’t mean what you think - If you know you have to pull an all-nighter, try a “prophylactic nap.” It’s a short nap in advance of expected sleep deprivation that will help you stay alert for up to 10 hours afterwards.
3. You can’t avoid that down period after lunch by not eating - Human bodies naturally go through two phases of deep tiredness, one between 2-4 a.m. and between 1-3 p.m. Skipping lunch won’t help this period of diminished alertness and coordination.
4. Pick the right time - After lunch in the early afternoon your body naturally gets tired. This is the best time to take a brief nap, as it’s early enough to not mess with your nighttime sleep.
5. Hour naps are great - A 60-minute nap improves alertness for 10 hours, although with naps over 45 minutes you risk what’s known as “sleep inertia,” that groggy feeling that may last for half an hour or more.
6. But short naps are best - For healthy young adults, naps as short as 20, 10, or even 2 minutes can be all you need to get the mental benefits of sleep, without risking grogginess.
7. Drink coffee first - The way this works is you drink a cup of coffee right before taking your 20-minute or half-hour nap, which is precisely how long caffeine takes to kick in. That way when you wake up, you’re not only refreshed, but ready to go.
8. The NASA nap - A little group called NASA discovered that just a 26-minute nap increases performance by 34% and alertness by 54%. Pilots take advantage of NASA naps while planes are on autopilot.

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