In one day, adult lungs move about 10,000 litres of air.
11
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Poor eyesight (myopia) is associated with higher IQ.
232
The human eye blinks an average of 4,200,000 times a year.
233
On average, there's 100 billion neurons in the human brain.
83
Pain occurs when sounds are above 130 db.
123
The human brain doesn't stop developing until about 25 years old.
102
On average a woman has 4 sexual partners in her lifetime.
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