Most smokers live in developing countries. Smoking is already causing about one-sixth of all deaths in developed countries. This proportion is still rising mainly due to the increasing smoking habitat among women. If the proportion stays at or about one-sixth. This means that about 200 million out of the 1.2 billion people living in developed countries will eventually be killed by tobacco.
People substantially underestimate the risks of smoking.
Asthmatic children are up to 2.5 times more likely to have their condition worsened by passive smoking. No single factor could have as much impact on the rising toll of cardiovascular deaths around the world as tobacco cessation. Lower tar cigarette do not substantially reduce the risk of heart attack in smokers.