If your DNA was stretched out it would reach to the moon 6,000 times.
256
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
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
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The human brain uses approximately as much energy as a 10 watt light bulb.
120
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139