a major study published in the famous international medical journal Lancet shows that overweight and obesity increase the risk of cancer. The quality index (also known as BMI, weight divided by height squared) is significantly associated with the 17 cancers, including uterine cancer, kidney cancer, gallbladder cancer and so on. Obesity has increasingly become a serious worldwide problem.
obesity (map / CAP)
obesity is a world topic
in recent years, obesity seems to have become a contagious "superbug", making national government headaches. More than 1 billion 400 million of the world's 20 and more adults are overweight, of which more than 200 million men and nearly 300 million women are obese, and 10 are obese every 100 adults in the world, and the number is still growing at a rate of 5 years in the world, with 78 million obese people in the United States, WHO reports. Closely followed by China and India, the obesity population was 46 million and 30 million respectively.
2010, the United States Center for Disease Control and prevention announced that obese adults in the United States have accounted for 35.7% of the total population. Obesity causes about 100 thousand to 400 thousand deaths each year, and the total cost of social costs is about $117 billion, accounting for 6% to 12% of medical and health expenditure, and has become an urgent social problem.
with the improvement of living standards, Chinese waistline is getting thicker. Data show that in 1985~2012 years, Chinese men's waist circumference has risen by more than 15%. In 2002~2010 years, the proportion of overweight and obesity in Chinese adults rose from 25% to 38.5%, and urban residents accounted for the majority. WHO predicts that by 2015, more than half of China's population will be overweight.
more serious is that the number of obese adults in China has increased rapidly. Professor Pan Hui, chief physician of Peking Union Medical College Hospital, found that the number of obese children and adolescents is increasing. It is understood that at present, China's obesity population under 18 has reached 120 million. What is worrying is that in life, big bellies are often regarded as signs of "successful people", and little is known about the dangers of obesity.
closely related to cancer and chronic diseases
3 million 400 thousand direct and indirect deaths worldwide annually due to obesity, and become the second preventable fatal risk factors second only to smoking. Some experts predict that obesity may become the number one killer in twenty-first Century, bringing people a disease.
cancer. In August 14th, the latest study, published in the lancet magazine, said British researchers conducted a 7 - and - A - half year - long follow-up survey of 5 million 240 thousand people over 16 years old, and found a total of 166955 people in need for cancer, and the body mass index was significantly correlated with 17 types of cancer.
for example, the body mass index of every growth 5kg/m2 (meaning a person with a 160cm, a body weight 60kg, and a weight increase of about 8kg), then the incidence of uterine, gallbladder, renal, cervical, thyroid, and lymphoma will rise significantly. Statistically, every 1kg/m2 increase in body mass index will add 3790 cancer patients per year in the UK.
, Pan Hui analysis said that the study showed that obesity was associated with cancer, but not a causal relationship. As to whether obesity is carcinogenic, it needs to be tightened.
cardio cerebral vascular disease. The study found that among the 15 kg overweight people, 30% were suffering from hypertension and most of them suffered from hyperlipidemia, both of which were risk factors for cardiovascular and cerebrovascular diseases. Studies have shown that obesity is one of the independent risk factors for coronary heart disease. The risk of coronary heart disease increases by 14% and the risk of stroke increases by 4% per 5 kg of weight.
diabetes. The incidence of diabetes in normal weight population is only 0.7%, but the incidence of diabetes in moderately obese people will increase by 4 times, and that in severely obese people will increase by 30 times.
sleep apnea syndrome. A lot of fat accumulation can cause snoring, edema and even breathing difficulties during sleep. Severe sleep apnea syndrome may occur.
osteoarthropathy. Excessive weight gain is an additional burden on bones and joints, leading to problems such as arthritis and muscle strain.
fatty liver. The degree of visceral fat accumulation is directly proportional to body weight. Too much fat can cause damage to liver and other organs and cause fatty liver.
depression. Obesity can cause anxiety, fear, depression and other negative emotions. Obesity can increase women's risk of depression by 30%.
infertility. Obesity can lead to increased estrogen levels in women, up to 2~5 times the normal weight of women, and then lead to irregular menstruation and other problems, affecting pregnancy.