When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
Like fingerprints, everyone's tongue print is different!
71
In one day, adult lungs move about 10,000 litres of air.
11
Household bleach is the recommended chemical to decontaminate people exposed to the anthrax virus, by the U.S. F.D.A.
16
According to one report, it would take 800 marijuana joints to kill a person - but the cause of death would be carbon monoxide poisoning.
176
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10