What are the disadvantages of smoking

Smoking is a behavior that many of our friends like very much. We often say that smoking is harmful to our health, but we should also find that there are more and more people smoking around us, because many of us do not really think about the disadvantages of smoking. In fact, as long as we read the detailed introduction about the disadvantages of smoking below, I believe many friends will definitely try not to smoke.

【Heart and blood vessels】

Smoking causes fat accumulation and blood vessel occlusion, making smokers more susceptible to coronary heart disease. Smoking causes 25% of all heart disease deaths. The prevalence rate is twice as high among smokers over 50 years old. The prevalence rate among smokers under 50 years old is 9 to 14 times higher. Smoking causes blood vessels to constrict, slowing down blood and oxygen circulation, eventually leading to thickening of blood vessel walls and inducing coronary heart disease and stroke. Smoking can completely block blood flow to the hands and feet, leading to amputation.

Lungs

Smoking causes lung cancer. 90% of total mortality is caused by smoking. A person who smokes ten cigarettes a day has ten times the risk of developing the disease as a non-smoker. Damaged cells cannot return to normal. Early symptoms may go unnoticed until the cancerous cells spread to blood vessels and other organs. Smoking can also cause emphysema. The toxic substances accumulated in the bronchi of the lungs will hinder the normal exhalation of the air inhaled by the human body, causing the lung cells to swell or burst, resulting in difficulty breathing for the patient.

Stomach

For people with gastrointestinal diseases, smoking can make the disease worse. For people with gastric ulcer or duodenal ulcer, the healing of the ulcer will be slowed down and may even develop into a chronic disease. Smoking can stimulate the nervous system, accelerate the secretion of saliva and gastric juice, make the gastrointestinal tract often in a state of tension, and cause smokers to lose their appetite. In addition, nicotine can cause the blood vessels in the gastrointestinal mucosa to constrict and also reduce appetite.

[Bronchi]

Smoking is the main risk factor for chronic obstructive bronchitis. Because smoking can cause the cilia of bronchial epithelial cells to become shorter and irregular, as well as movement disorders, reducing local resistance and making it easier to get infected.

【liver】

Smoking puts more strain on the liver. Frequent smoking affects the lipid metabolism of the liver, increasing the fat in the blood, reducing benign cholesterol and increasing malignant cholesterol. This reason puts an increased burden on the liver's detoxification function.

In the above article we introduced a common behavior, which is smoking. Smoking not only affects our liver and stomach, but also harms our lungs and heart. The above article introduces in detail the various disadvantages of smoking.