The human brain doesn't stop developing until about 25 years old.
102
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
On average, women have always lived longer than men.
195
Most dreams last only 5 to 20 minutes.
79
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Every cigarette smoked cuts at least five minutes of life on average, which is roughly the time it takes to smoke one cigarette.
118
On average, there's 100 billion neurons in the human brain.
83

