Your heart rate can rise as much as 30% during a yawn.
69
Chewing gum boosts your brain power.
285
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Your body is creating and killing about 2.4 million red blood cells per second.
17
When a person dies, hearing is usually the last sense to go.
124
Men have larger hearts; women's hearts beat faster.
77
About half of all Americans are on a diet on any given day.
29
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33