After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Enamel is hardest substance in the human body.
61
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Our Right Lungs takes more air than our left lung.
194
