During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
When your face blushes, the lining of your stomach turns red, too.
154
Chewing gum boosts your brain power.
285
Your heart rate can rise as much as 30% during a yawn.
69
The average person who stops smoking requires one hour less sleep a night.
79
The male fetus is capable of attaining an erection during the last trimester.
75
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
