Your fingernails grow faster in summer.
744
Poor eyesight (myopia) is associated with higher IQ.
232
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
One human hair can support 3 ounces.
191
Babies crawl an average of 200m a day.
212