Men have larger hearts; women's hearts beat faster.
77
Flu shots only work about 70% of the time.
18
A human being loses an average of 40 to 100 strands of hair a day.
133
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
Pain travels through your body at 350 ft. per second.
36
The lense of the eye continues to grow throughout a person's life.
34
By weight, Bone is five times stronger than steel.
417
Obsessive nose picking is called Rhinotillexomania.
101