If you are cold you are more likely to be hungry because you use energy to keep warm.
143
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
The human brain doesn't stop developing until about 25 years old.
102
There are about 1,400 different species of bacteria in your belly button.
10
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
The average person's skin weighs twice as much as their brain.
131
In 1996, research found that having excessive body hair is linked to higher intelligence.
23