It is a common belief that a balanced diet and proper exercise is all that is needed to create a healthy and attractive body. In fact, the cycle of calorie intake and calorie consumption is only one aspect of maintaining a standard body weight, but other factors such as life circle and medication also have an important impact on weight. The “hidden” factor one: family and friends Our usual diet and activities are mainly influenced by the surrounding circle, so it is inevitable that the family environment, the circle of friends become one of the factors affecting our weight change. If our spouse is obese, the chance of gaining weight will increase by 35%, and if our siblings are obese, the chance of gaining weight will increase by 40%, and unexpectedly, if our good friends are overweight, the chance of gaining weight will reach 57%. So, the next time you find your waistline getting thicker, you can put the blame on your parents or best friend. People’s daily behavior is subconsciously influenced by the people around them and the environment they live in, and often we don’t even think about making any changes. For example, twice a week, your office has to hold a celebration detox, and this seems to have become part of your life, so even if you want to lose weight desperately, you can not resist this unconscious activity on your weight loss results subversive. The “hidden” factor two: drugs A recent study at Weill Cornell Medical Center in New York found that drugs have an effect on obesity of 5%. Although this effect is only a small part, but given that millions of people in the United States are currently taking prescription drugs, so the impact of drugs on weight gain still can not be underestimated. In addition, people taking daily anti-allergy, anti-infection, heart disease prevention, diabetes, depression and cancer-related drugs on weight gain is the greatest impact. Although scientists cannot fully explain why drugs cause weight gain, they believe that taking drugs can cause fluid retention, disrupt metabolic mechanisms, and even affect appetite-stimulating enzymes. “Hidden” factor three: chemical pollutants There are currently more than forty environmental chemicals identified as “fattening” substances. Some paintings, plastics, wallpaper, textiles and floor tiles contain pollutants that can cause people to gain weight and even increase insulin levels in the body. Persistent environmental pollutants such as DDT pesticides, dioxins, and benzene have also been identified as triggers of obesity and type II diabetes. Why do chemical pollutants also cause weight gain? Chemicals in the air, soil and drinking water all have an effect on the bacteria that enter the digestive tract. Scientists believe that these intestinal bacteria interfere with weight loss by altering their synthesis, thus leading to weight gain and increased insulin in the body. The “hidden” factor four: sleep Research has found that the quality of sleep does not directly affect weight, but severe lack of sleep can make a significant increase in weight. Columbia University did a study on sleep habits, the results found that a night of sleep less than 4 hours of people, the chances of weight gain than people with 7-9 hours of sleep 73% higher; and 6 hours of sleep a night, the chances of obesity than 7-9 hours of people, 23% higher. Certain studies have found that in the case of excessive fatigue, the body’s leptin will be significantly reduced, and leptin is a protein-like hormone secreted by fat cells, which plays an important role in regulating energy balance and feeding behavior. Similarly, sleep deprivation will also stimulate insulin, thus inducing obesity and type II diabetes. The “hidden” factor five: virus In the late 1980s, researchers found that chickens in a particular virus, even if they did not eat too much food, but still gain weight. They also found a series of other types of viruses that cause rats, cats, dogs and pigs to gain weight. There is also some evidence of a link between human viral pathogens and obesity. Although the direct link between viral infection and weight gain in humans is not clear, microscopic observation of all viruses and their antibodies in the blood vessels of infected humans showed that people with fatty viruses in their bodies gained much more weight than those who were not infected with viruses.