There's 100 trillion good bacteria living in your body.
17
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Your thumb is about the same size as your nose.
124
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24