Women who smoke often have trouble becoming pregnant, and a higher rate of miscarriage than nonsmokers. In men, smoking is known to lower sperm count. A study in China found that men who smoked 20 or more cigarettes a day had a 60% higher risk of suffering from impotence. Babies born to smoking mothers are more likely to be stillborn, or born prematurely.
Smoking threatens vision, increasing the risk of macular degeneration and cataracts. It slows healing, and causes skin to lose its elasticity prematurely. It also affects bone density, increasing the risk of fractures. Interference with circulation in a smoker`s brain may be one reason that heavy smokers have a 157% higher risk of getting Alzheimer`s disease, and a 172% higher risk of other dementias.