The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Men have larger hearts; women's hearts beat faster.
77
Gin is a mild diuretic which helps the body get rid of excessive fluid. Thus, it can reduce problems such as menstrual bloating.
90
Scientists estimate that laughing 100 times is equivalent to a 10-minute workout on a rowing machine.
202