One puff on a cigarette delivers over 4,000 different chemicals into your body. |
Anorexia is an eating disorder in which a person eats almost nothing and is severely underweight. Yet most people with the disease still believe they look fat. |
Breast-fed babies whose mothers smoke are exposed to nicotine through their milk, often up to half a cigarette's worth a day. |
Recent research suggests that people who smoke are over 50% more likely than non-smokers to have serious relationship problems, including a greater likelihood of suffering from anxiety and depression. |
Your fingernails grow almost four times as fast as your toenails. |
The average human brain has about 100 billion nerve cells |
The strongest bone in your body is the femur (thighbone), and it's hollow! |
It takes about 20 seconds for a red blood cell to circle the whole body. |
The bird flu virus could evolve into a form that is easily spread between people, resulting in a highly contagious and lethal disease. |
The Chinese, in olden days, used marijuana only as a remedy for dysentery. |