In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Your thumb is about the same size as your nose.
124
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
In 1996, research found that having excessive body hair is linked to higher intelligence.
23