Revealed: The truth about weight gain after quitting smoking

Globally, reducing tobacco use and quitting smoking are among the top priorities for achieving health.
, about 6 million people die prematurely each year from smoking, according to the World Health Organization.
of the 6 million deaths, more than 600,000 were caused by exposure to secondhand smoke.
increase the risk of lung cancer, but also increase the risk of type 2 diabetes (T2DM) and heart disease.
smoking also has a significant negative impact on the reproductive system, affecting erectile dysfunction in men, and for women, reducing fertility and making them prone to premature birth and extraterrestroal pregnancy.
smoking reduces estrogen levels in women, women who smoke are 50 percent more likely to develop cervical cancer than nonsmostatic women, and women who smoke for more than 20 years have a 30 percent increased risk of breast cancer.
for pregnant women who smoke secondhand smoke, the birth rate is lower and the infant mortality rate is higher.
with the spread of "smoking is harmful to health", more and more people choose not to smoke.
, the U.S., where smoking rates declined from 1989 to 2009.
but for those who already smoke, it is still difficult to quit.
about 70 percent of teens and adult smokers said they were heavy smokers and wanted to quit, only about 7 percent of smokers tried to quit.
't try to quit smoking or quit smoking unsuccessfully, in addition to the addictive nicotine in tobacco, fear of weight gain after quitting is also a major reason many people don't quit smoking.
According to a study published in the British Medical Journal on the incidence of smoking and obesity, participants who quit smoking for 12 months gained an average of 1.1 kilograms in the first month, 2.3 kilograms in the second month, and then continued to gain weight until 4.7 kilograms.
13 percent of them gained more than 10 kilograms after quitting smoking.
doi: 10.1136/bmj.e4439 Untreated smokers, smokers with weight changes after continuous smoking cessation, weight changes after continuous smoking cessation From the above research, after quitting smoking, weight generally increased, about an average of about 10 pounds.
why do you lose weight after quitting smoking? It starts with nicotine in tobacco.
Nicotine is one of the main components of tobacco, which spreads through the mucous membranes of the lungs and the oral cavity throughout the body, and when it enters the brain, it mimics the central nerve transfer of acetylcholine, which binds to nicotine-binding on the surface of many neurons.
nicotine has a stimulating effect on the central nervous system, particularly in the reward circuit, which releases more dopamine by activating the nerves involved.
addition to making the brain feel happy and addicted to dopamine and serotonin, nicotine also directly affects the body's metabolism and increases energy consumption.
nicotine reduces appetite signals in the lower abstinence, suppresses appetite, and leads to reduced food intake; nicotine increases the heat production capacity of brown adipose tissue and increases the expression of UDP1 and UDP3 in brown adipose tissue.
(A large number of studies have shown that brown adipose tissue not only protects against the cold, but also burns excess fat and sugar, producing calories and preventing excessive storage of fat in the body); nicotine activates the sensory nervous system, increasing levels of epinephrine and epinephrine.
The mechanism by which smoking reduces weight When smokers quit, the weight-control effects of nicotine disappear, and since nicotine does not play a role in the reward circuit, people begin to activate the brain's reward circuit by increasing their intake of high-sugar and fatty foods, so they gradually gain weight after quitting smoking.
weight gain after quitting smoking was also partly associated with reduced nicotine intake and changes in intestinal bacterigroup composition.
study, published in PLoS One in 2013, found that quitting smoking led to significant changes in the composition of the human gut microbiome.
doi: 10.1371/journal.pone.0059260 Researchers compared the microbiome composition of ex-smokers with that of individuals in the control group (the control group is current smokers and non-smokers) and found that quitting smoking was found The number of Firmicutes and Actinobacteria in the body was higher than in the control group, while the number of Bacteroids and Proteobacteria was lower.
Comparing the main microbiomes of the gut microbiome before and after quitting smoking, a study published earlier in Nature called Human Gut microbes associated with with the obesity found that obese people's guts were significantly less abundant than those of thin people, while the abundance of hard-walled bacteria increased significantly.
who quit smoking should not worry too much about changes in the intestinal bacteria, which can be altered through dietary interventions.
the study, the researchers used carbon-water-restricted and fat-restricted diets on 12 overweight patients.
found that after one year of these two diets, there was a significant increase in the relative abundance of Bacteroidides in overweight patients compared to prior to the diet, while the abundance of firm wall bacillus Firmicutes was relatively reduced, and that increased ethillation was positively associated with weight loss.
quit smoking, dietary interventions can be used to reduce the weight gain caused by changes in the gut bacteria.
relationship between weight loss and the gut microbiome ecology is combined, weight gain in ex-smokers is caused by the absence of nicotine-controlled weight control and changes in the gut bacteriome.
, when quitting is successful, there are many ways in which a quitter can lose weight without the fatal damage of quitting smoking but only with physical health.
and smoking harm not only their own bodies, but also the health of their partners and future generations.
, published in J Diabetes in 2019, showed that husbands smoke and wives are prone to diabetes.
husband's heavy smoking addiction, the higher the risk to his wife.
husband smoked less than 10 cigarettes a day, 11 to 20 cigarettes, increasing his wife's risk of diabetes by 6%, 13% and 25%, respectively.
doi: 10.11111/1753-0407.13009 In August 2019, Thailand's Family Development and Protection Act stipulates that smoking at home will be considered a writer's crime and, if convicted, may face legal action.
, for their own and family's health, smoke, or do not smoke.
this article is from Bio Valley, for more information please download Bio Valley APP (