لخّصلي

This video transcript discusses the harmful effects of cigarettes on the body and the physical benefits of quitting smoking. It explains that with each inhalation, over 5,000 chemical substances in cigarette smoke come into contact with the body's tissues. The smoke damages the teeth, gums, and enamel, leading to tooth decay. It also damages the nerve endings in the nose, causing a loss of smell. In the respiratory system and lungs, smoking increases the likelihood of infections and chronic diseases such as bronchitis and emphysema. The smoke damages the cilia, which are tiny hairs that clean the airways, and fills the air sacs, reducing the exchange of oxygen and carbon dioxide. The toxic gas carbon monoxide enters the bloodstream and replaces oxygen, leading to oxygen deprivation and shortness of breath. The nicotine in cigarettes stimulates the brain, releasing dopamine and other neurotransmitters, making tobacco highly addictive. Smoking also constricts blood vessels, damages their fragile lining, and increases the risk of blood clots, heart attacks, and strokes. Many substances in cigarettes can cause harmful mutations in DNA, leading to various cancers. Quitting smoking has immediate and long-lasting physical benefits. Within 20 minutes of the last cigarette, heart rate and blood pressure return to normal. After 12 hours, carbon monoxide levels stabilize, improving the blood's oxygen-carrying capacity. One day after quitting, the risk of a heart attack decreases, and after two days, the sense of smell and taste start to recover. The lungs become cleaner after about a month, and the cilia in the lungs and airways regenerate, providing better resistance to infections. After one year, the risk of heart disease is reduced by half, and after five years, the likelihood of blood clot formation significantly decreases. After ten years, the chances of developing deadly lung cancer are reduced by 50%, and after fifteen years, the risk of coronary artery disease is essentially the same as that of non-smokers. However, quitting smoking can cause anxiety and depression due to nicotine withdrawal, but these effects are usually temporary. Various tools such as nicotine replacement therapy, counseling and support groups, cognitive-behavioral therapy, and moderate-intensity exercise can make quitting easier. Overall, quitting smoking leads to improved health.