The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Contrary to popular beliefs, chocolate does not cause acne.
63
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human brain is more active during sleep than during the day.
28
Deep Breathing gives you health benefits similar to aerobics.
39
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
Only 1% of bacteria cause disease in humans!
2