When it comes to smoking, I believe everyone understands that it is an extremely damaging thing to do. Many people are aware of the dangers of cigarettes and understand the damage secondhand smoke can do to their loved ones and friends. Many smokers are worried about the question, after quitting smoking, will their bodies be able to return to the same state as non-smokers? Some smokers even have long-standing friends who are very disappointed, thinking that their bodies have no hope of returning to normal, so they can simply continue to smoke! But for smokers, the road to quitting is “a long way to go”. It’s okay to make a hypothesis. What would you feel if you stopped smoking? Would you change your weight? Would you be eager to smoke? I believe that many people who have quit smoking will encounter this problem, so let’s take a look at your brain and your body state after you quit smoking. A. Effects on the brain Quitting nicotine can lead to mood changes, irritability and anxiety, and other symptoms. It can make you feel uncomfortable because of strong cravings for more nicotine. Eventually, it becomes addictive; needing nicotine to keep functioning properly. Cigarettes contain chemicals that make your brain feel “comfortable” and will continue to affect it. The areas of the brain that control emotions and cravings are affected in 20-30% of smokers compared to non-smokers. If you can overcome your cravings in the early stages of quitting smoking, your brain will no longer rely on cigarettes. Second, the effect on the lungs lung contrast Smoking is a major factor in the development of chronic obstructive airways disease. Smoking can cause shortening and irregularity of the cilia of the bronchial epithelial cells and their movement is impaired, reducing local resistance and vulnerability to infection. 80% of all male lung cancers are related to smoking, and smokers who smoke ≥ 400 cigarettes a year are at high risk of lung cancer, cigarette smoke contains more than 3000 chemical components, more than half of which are harmful to humans! The lungs are renewed at a rapid rate. When you quit smoking, lung inflammation is reduced and the lung cilia are no longer paralyzed and work again. The lung cilia are the cleaning system of the lungs, which begin to repair themselves a few days after quitting smoking and resume normal function after a few months. Third, the effect on teeth Smoking can easily lead to periodontal disease: it is more likely to loosen and fall out. Smoking is a high risk factor for periodontal disease, especially severe periodontitis, which has a high prevalence and severity, with high rates of tooth loss and edentulism. It is also related to the amount of smoking. Heavy smokers (>10 cigarettes/day) have a faster disease progression and quitters are at lower risk than current smokers. Nicotine darkens the teeth and gradually forms a film, which is a breeding ground for bacteria. Therefore, teeth also become whiter and harder after quitting smoking. Do you recognize the effects of smoking? Would you be a person who goes for excuses in order to continue smoking? During the process of quitting smoking, the will power of the quitter is particularly tested due to the effects of nicotine withdrawal. If you can persevere through the first two weeks or so when the effects are strongest, then the withdrawal symptoms will slowly diminish until they disappear. Because of the effects of nicotine withdrawal, some smokers may feel no problem at all when smoking normally, but after quitting, they feel weak, uninspired, and even dizzy. From a professional medical point of view, smoking is indeed able to maintain the existing weight, because some substances in cigarettes will suppress certain centers in the human brain, smoking reduces people’s hunger, and therefore reduces the desire to eat, so long-term smoking body shape will remain basically the same, some people are afraid to quit smoking after the body shape and do not go to quit smoking. Here’s a look at the changes in the body per unit of time after quitting: the time is all supported by evidence-based medicine First day of quitting: 20 minutes: the nicotine level in the blood is reduced, blood pressure, pulse and hand and foot temperature return to normal levels. 8 hours: residual nicotine in the blood has decreased to 93.75% of the normal daily peak, a 6.25% reduction. 12 hours: Oxygen levels in the blood have increased to normal. Carbon monoxide levels drop to normal. Day 2 of quitting smoking: Becomes irritable and cranky. Damaged nerve endings begin to regenerate and the senses of smell and taste begin to return to normal. Day 3 (one of the hardest days): 90% of the nicotine is excreted in the urine, and the withdrawal response peaks with more irritability and restlessness. Lung function begins to increase, making breathing easier. Day 5-8 of withdrawal (about a week): The desire to smoke for more than 3 minutes 2-3 times a day arises. The anxiety and discomfort you feel will feel like 1 minute is as long as 1 hour. Day 10: The urge to smoke decreases to 2 times a day for less than 3 minutes. Day 10-15: The withdrawal reaction fades. Blood flow to the gums and teeth is similar to that of a non-smoker. 2 weeks-4 weeks after quitting: The brain is no longer affected by nicotine, and anger, anxiety, inattention, impatience, insomnia, irritability, and depression largely disappear. 3 months after quitting: Risk of heart attack begins to decline and lung function improves. Blood flow improves substantially. Walking becomes easier. Insulin resistance decreases and weight increases. 9 months after quitting: Any sinus congestion, fatigue, or shortness of breath associated with smoking improves. 1 year after quitting: The risk of coronary heart disease, heart attack, and stroke dropped to half the risk of non-smokers 5 years after quitting: The risk of subarachnoid hemorrhage dropped by 59% 10 years after quitting: The risk of death from lung cancer has dropped by nearly half. The risk of oral cancer, throat cancer, esophageal cancer, and pancreatic cancer have all been reduced. One person quits smoking, the whole family is happy if you quit! Your body will forgive you at the first opportunity! Everything will turn out for the better! One person quits smoking, the whole family benefits!