Chocolate, sex, and laughter are all important for a healthy brain.
37
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Only 1% of bacteria cause disease in humans!
2
On average, there's 100 billion neurons in the human brain.
83
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
Male hospital patients fall out of bed twice as often as female hospital patients.
71
You inhale about 700,000 of your own skin flakes each day.
29