There's 100 trillion good bacteria living in your body.
17
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In one day, adult lungs move about 10,000 litres of air.
11
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Your thumb is about the same size as your nose.
124