Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202
The lense of the eye continues to grow throughout a person's life.
34
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The average sperm cell swims at 8 inches per hour.
76
Every time you sneeze some of your brain cells die.
113
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
A woman's sense of smell is most sensitive during ovulation.
34
Every day, the average person swallows about a quart of mucous.
5