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
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
Held in farts enter your bloodstream and are bad for your body.
26
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19

