The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The average sperm cell swims at 8 inches per hour.
4
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Human hair and fingernails continue to grow after death.
7
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
We share 70% of our DNA with a slug.
218
The human brain is more active during sleep than during the day.
28