Stroke Many smokers fortified with a misguided belief would still like to pretend that they have heard it all before. That's again a half-truth. Impotence is more common in smokers because smoking damages blood vessels, restricting blood flow. A recent US study revealed that smoking has been shown to have an effect on the size of a man's penis, inhibiting erection. The children born to mothers who smoke during pregnancy start smoking at an early age.
Smoking causes gum disease and tooth loss.
Asthma is twice as common in the children of smokers. Defective vision and cataracts are more common in smokers. Smoking makes heart beat faster, raises blood pressure and causes hypertension. Smoking can damage heart blood vessels making it difficult for heart to pump blood. The skin becomes slightly pigmented grey.