10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
The average human body contains enough iron to make a small nail.
50
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
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
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
When a person dies, hearing is usually the last sense to go.
124
Dieters who sleep more take off more fat that those who sleep less.
159

