The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Enamel is hardest substance in the human body.
61
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
A person can live without food for about a month, but only about a week without water.
156
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The human brain is more active during sleep than during the day.
28
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