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
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
Every year your body replaces 98% of your atoms.
119
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Your heart rate can rise as much as 30% during a yawn.
69
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
People that suffer from gum disease are twice as likely to have a stroke or heart attack.
22