The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The human eye blinks an average of 4,200,000 times a year.
233
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
In one day, adult lungs move about 10,000 litres of air.
11
Pain occurs when sounds are above 130 db.
123
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
