Lack of water is the #1 trigger of daytime fatigue.
148
Termites work 24 hours per day and they do not sleep.
57
Bats sleep 18-20 hours per day.
5
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Dieters who sleep more take off more fat that those who sleep less.
159
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193