The human brain doesn't stop developing until about 25 years old.
102
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
Clinophobia is the fear of beds!
30
Ingrown toenails are hereditary.
15
The human brain is more active during sleep than during the day.
28
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
When your face blushes, the lining of your stomach turns red, too.
154