Doctors treating lung cancer in heavy-smoking communities see firsthand the harmful effects of tobacco smoke on health. Tobacco smoke is a major cause of lung cancer, particularly squamous cell lung cancer, which often affects individuals with a history of smoking.
Even former smokers can develop lung cancer years after quitting. Current studies show a decline in lung cancer cases due to extensive public awareness campaigns about the risks of smoking. Nicotine, the addictive substance in tobacco, quickly enters the bloodstream and reaches the brain, reinforcing the addiction.
In addition to nicotine, tobacco smoke contains harmful chemicals like hydrogen cyanide, carbon monoxide, and ammonia, which can lead to various diseases, including cancers of the esophagus, larynx, mouth, and throat. Smoking is also linked to chronic conditions like aortic aneurysms, strokes, and chronic obstructive pulmonary disease (COPD), as well as respiratory infections and asthma.
Pregnant women who smoke increase the risk of severe prematurity, low birth weight, and sudden infant death syndrome (SIDS) in their babies.
Benefits of Quitting Smoking
Encouraging smokers to quit is essential. The health benefits of quitting can be significant, even if the risks vary by age. Within days of stopping, carbon monoxide levels in the blood decrease, leading to improved lung function and reduced respiratory issues. Quitting smoking also stabilizes heart-related problems and lowers the risk of conditions like acute myeloid leukemia.
Overall, quitting smoking can lead to a healthier life and reduce the risk of serious diseases.