Sihai network

Scared! What are the disadvantages of smoking? All the top ten hazards of smoking to the body

Smoking is harmful to the human body, but not beneficial. Here is a summary of all the hazards and disadvantages of smoking to the human body. I hope you can stick to quitting smoking and give yourself and the people around you a clean and fresh living environment!

1、 Smoking causes blood clots and various heart diseases

Inhaling carbon monoxide from cigarettes reduces the ability of the blood to absorb oxygen. Nicotine can accelerate the heartbeat, increase blood pressure, weaken the endurance of the heart, cause coronary artery infarction due to myocardial hypoxia, promote the accumulation of atherosclerosis due to cardiac ischemia (or heart glue pain), and many heart diseases begin to occur.

Between the ages of 30 and 49, smokers are five times more likely to have heart disease than non-smokers. Smokers found that their risk of heart attack halved after a year.

2、 Brain damage from smoking

Smoking can cause a variety of brain diseases, reduce circulating oxygen and blood in the brain, cause bleeding and occlusion of brain blood vessels, and lead to paralysis, mental decline and stroke. The cause of stroke is that smoking causes vasospasm in the brain, which makes the blood clot easier. Smokers are twice as likely to have a stroke as nonsmokers.

3、 Damage of smoking to oral cavity

Smoking can cause oral and laryngeal cancer. The heat of tar and smoke in cigarettes will inflame salivary glands, damage taste buds, and greatly weaken taste and smell. Next, it is easy to lead to oral cancer. About 2 / 3 of patients can still live hard after finding oral cancer. At the same time, the flue gas can make the temperature in the throat from 37 DEG; C increased to 42 & deg; C. It causes micro burn of the mucous membrane inside and produces chronic thermal trauma, which eventually leads to laryngeal cancer.

4、 Lung damage caused by smoking

Smoking can cause the cilia of bronchial epithelial cells to become shorter, irregular and dyskinesia, reduce local resistance and be vulnerable to infection. Smoking can cause lung cancer. 90% of the total mortality is caused by smoking. The initial symptoms will not be detected until cancerous cells spread to blood vessels and other organs. Smoking can also cause emphysema. Toxic substances accumulated in the bronchus of the lungs will hinder the normal exhalation of the air inhaled by the human body, make the lung cells expand or burst, and cause the sick to have difficulty breathing.

5、 The damage of smoking to the stomach

For people with gastrointestinal diseases, smoking is enough to worsen gastrointestinal diseases. In patients with gastric or duodenal ulcer, the healing of the ulcer will slow down and even evolve into a chronic disease. www.jieyanri. Smoking can stimulate the nervous system, accelerate the secretion of saliva and gastric juice, make the gastrointestinal tract often tense, and lead to smokers' loss of appetite. Www. 68mn. In addition, nicotine can constrict the blood vessels of gastrointestinal mucosa and reduce appetite.

6、 Smoking damage to whole body bones

Nicotine constricts blood vessels and reduces the amount of blood flowing to new bones. Carbon monoxide inhaled during smoking also reduces the rate of oxygen entering the body. Smoking can cause osteoarthritis and back pain. Most people with severe back pain are addicted to smoking. This is because smoking can reduce the blood flow to the articular disc, resulting in early degeneration of the articular disc. Smoking can cause arthritis. Smoking a pack of cigarettes a day will increase the prevalence rate by 50%. Smoking causes bone loss faster. Smoking can interfere with estrogen, which is an important hormone for bone development.

7、 Damage of smoking to liver

Smoking can increase the burden on the liver. Regular smoking will affect the lipid metabolism of the liver, increase the fat in the blood, reduce benign cholesterol and increase malignant cholesterol. This reason increases the burden on the detoxification function of the liver.

8、 Intestinal damage caused by smoking

Smoking can cause colon cancer. The risk of this cancer is directly proportional to the amount of tobacco. Research shows that although stopping smoking can reduce the chances of other diseases such as heart disease and lung cancer, the risk of colon cancer is still very high.

9、 Damage of smoking to reproductive system

Smoking can inhibit the nerve center of the spinal cord, weaken the desire of smoking men, and cause peripheral blood circulation disorder because smoking can constrict and spasm blood vessels. Smoking is the main cause of impotence. Australia and Canada have printed this message directly on cigarette boxes. In addition, smoking affects vitality and increases deformities. It can return to normal only after stopping smoking for three to six months. If you want a smart and healthy child, baby experts advocate that you must stop smoking for three to six months.

10、 Harm of second-hand smoke

The smoke emitted during smoking can emit more than 4000 gaseous and particulate substances. Most of these substances are very strong irritants, of which at least 40 can cause cancer in humans or animals. After smokers stop smoking, these particles can still stay in the air for several hours and can be inhaled by other non-smokers. They may also mix with the decay products of radon and cause greater harm to human health.

When smoking endangers the health of smokers, second-hand smoke also affects non-smokers. In addition to irritating the eyes, nose and throat, it also significantly increases the chances of non-smokers suffering from lung cancer and heart disease. If children live with some smokers, their respiratory system will be more vulnerable to infection. Other effects include increased cough, asthma, phlegm, damage to lung function and slowing lung development.