The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The human brain is more active during sleep than during the day.
28
Pain occurs when sounds are above 130 db.
124
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
The world's shortest man measures only 21.5 inches.
73
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82