Too bright sleeping environment may lead to obesity in women

Researchers at the London Cancer Institute reported in a new issue of the American Journal of Epidemiology that when they investigated the relationship between breast cancer and obesity, they discovered the impact of light in the sleeping environment on obesity. The survey involved 113,000 British women and was followed for 40 years. In this survey, the intensity of light in the sleeping environment was divided into four levels: reading, being able to see the indoor environment clearly but not suitable for reading, being visible but not able to see the entire room clearly, and the degree of "not seeing your fingers".

The researchers found that women who fell asleep in a brighter environment had higher indicators such as body mass index, waist circumference, waist-to-hip ratio, and waist-to-height ratio than women who slept in a darker environment. This correlation still exists even after factors such as exercise habits and sleep time are taken into account.

Anthony Sverdlow, a professor at the Cancer Institute in London who participated in the study, said light can affect the body's periodic rhythm, which in turn affects metabolism. This may help explain the new findings, but further research is needed to understand the specific mechanisms involved.

In addition to the above-mentioned sleeping environment that can cause obesity in women, there are many "unbelievable" reasons for obesity in life, which you may not know.

The relationship between husband and wife is incompatible

After a 10-year investigation, some scientists have found that if couples often quarrel and have tensions with each other in life, the risk of developing obesity and developing health problems such as high cholesterol is twice that of other people.

Experts also said that in a happy and harmonious couple relationship, the cholesterol content in the human body is normal, the blood composition is healthier, and the immunity is also significantly improved. Therefore, for the sake of health, please learn to maintain a peaceful mental state.

use air conditioning

The comfortable environment brought by air conditioning deprives people of the opportunity to lose weight during seasonal physiological periods. Human body temperature is constant because the human body has the function of automatically regulating body temperature. Whenever the weather is too cold or too hot, this physiological function will be activated to maintain body temperature at a normal level by shrinking pores, sweating, etc., and this process requires consuming a lot of body fat to obtain the necessary energy. Air conditioning provides a constant temperature environment for humans, which puts the original automatic temperature control function of the human body in a dormant state, resulting in the gradual accumulation of fat that can be consumed by regular adjustment of body temperature.

lack of sleep

Insulin in the sleep-deprived group cannot metabolize glucose normally and may develop obesity, while insulin sensitivity in the sleep-deprived group is normal. It is not known whether sleep-deprived people can improve their insulin sensitivity after improving their sleep. Therefore, those who sleep more than 8 hours and less than 4 hours a day will gain weight, and moderate sleep will help health.

processed foods

"Sweet additives" will cause the average person to eat an average of 82 grams more carbohydrates per day, which is equivalent to adding 6-10% more calories per day. In the long run, it is no wonder that obesity will become the biggest nightmare of modern people.

The foods most likely to make people fat are: sugar and sweet additives (16.1%), sweetened biscuits or breakfast cereal (12.9%), and sweet drinks or fruit drinks (10%).

excessive pressure

Researchers found that if slim women are under too much stress, the accumulation of abdominal fat increases. Because when psychological pressure is too high, cortisol secretion in the abdomen will increase, leading to fat accumulation. Cortisone is a hormone whose secretion is controlled by adrenaline. Therefore, if you want to maintain a devilish figure, it is best to relax.

Children of working mothers

A study published in the American Journal of Infectious Diseases showed that children of working mothers are more likely to be obese than children of stay-at-home mothers. Researchers at University College London compared the weight of 8552 children in 1965 with 1889 children in 1991 and found that among children in 1991, children of working mothers had a higher rate of obesity. But the researchers also said that they did not investigate the children's diet and exercise levels, and that these factors may also affect children's fat and thin.

tonsilotomy

Researchers at St. Louis University in the United States have found that children who have had tonsils removed gain significantly. Moreover, within 7 years after surgery, the patient's weight and body mass index were difficult to decrease. Body mass index will increase from 5.5% before surgery to 8.2% after surgery. Researchers believe this may be due to the increased appetite in the child after his tonsils were removed.

Turn on the lights and sleep at night

An experiment on mice showed that with the same diet and exercise conditions, mice who turned on the lights to sleep in the dark gained 50% more weight than before over an 8-week period than their counterparts who slept in the dark. Researchers said this experiment is the same as the reason why people can gain weight when eating late at night.

Children of older mothers

Studies have shown that children of mothers over the age of 30 are 2.6% to 2.8% more likely to be obese than children of mothers under the age of 25.

marriage choice

When looking for a spouse, thin people will like to marry thin people, while fat people will prefer to marry fat wives. It can be seen that the weights of the couple are also matched. In a study of Canadian families, a correlation was found between the couple's body mass index and subcutaneous fat thickness, or a measure of skin folds. It was also found that some people with obesity are hereditary, and people with a heavier body are more likely to have more children, which may also be the reason why obesity is getting worse.