Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Human hair and fingernails continue to grow after death.
7
The average person will go on a date at least 100 times before they finally marry.
33
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
The human brain uses approximately as much energy as a 10 watt light bulb.
120
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
There are about 255 babies born worldwide every minute.
46
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29