Long-term cigarette smoking usually contributes to heart disease. Heart disease is a condition in which a major blood vessel that leaves the heart carrying oxygen-rich blood becomes constricted. That increases the chances of a clot or closure that causes a heart attack.
Carbon monoxide is present in cigarette smoke. It binds with hemoglobin, the molecule in [...]
Heavy, long-term cigarette smoking is often associated with cancer, most prominently lung cancer and cancer of the larynx. Normal cells may be damaged, but they have the ability to repair themselves. In other cases, the cells are sloughed off and eliminated by the lymph system, then replaced by new ones. But this process can go [...]
It is well known that heavy smoking contributes to lung cancer and heart disease. But it also damages dozens of other body systems and overall health.
For example, even apart from specific damage to the lungs or larynx or arteries, smoking reduces the desire to exercise in most people. By using a chemical to lower stress, [...]
