The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18