I'll gain weight. Recent studies have demonstrated that, for ex-smokers, much of the damage done by smoking is reversed by the body's natural tendency toward health. The benefits of quitting apply to young smokers and old, to men and women, to those who are still healthy and those who already suffer from smoking-related illnesses. Here are the facts. If you stop smoking, you can expect to live longer than someone your age who continues smoking.
Former smokers can expect to recover much of their good health.
Women who stop smoking during pregnancy are more likely to have babies with normal birthweights than if they continued smoking. They may also have fewer complications, including miscarriage, premature rupture of the membranes and pre-term delivery. The minute you stop smoking, your body begins cleansing itself of tobacco toxins. Just two hours after you stop smoking, the concentration of nicotine in your blood can drop by half. Many of the effects of smoking are reversible within days or weeks, including non-chronic respiratory problems and symptoms associated with cardiovascular disease.