You inhale about 700,000 of your own skin flakes each day.
29
Kissing an infection-free partner is good for your teeth!
141
A woman's sense of smell is most sensitive during ovulation.
34
Redheads require up to 20% more anesthesia to be knocked out.
112
Men have larger hearts; women's hearts beat faster.
77
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 occurs when sounds are above 130 db.
124
Your skeleton keeps growing until you are about 35, then you start to shrink.
74