If you want to lose weight, you must be more proactive. Recently, many websites and fashion magazines have launched a "physiological cycle weight loss method", which is said to be "the innate advantage of women's weight loss". "As long as this method is used to lose weight, even eating, lunch and socializing can become thinner and thinner." Some people claim that they have lost 4 kilograms a month by this method. Female friends who believe in beauty may have to open their eyes. What is the physiological cycle weight loss method? Does it really work? Does it affect health? What is the physiological cycle weight loss method? Weight loss in physiological cycle is divided into four stages, namely, the 1-7 day after menstruation is called slimming welfare period, the 7- 14 day after menstruation is called slimming overspeed period, the 14-2 1 day after menstruation is called slimming plateau period, and the 2 nd1-28 day after menstruation. During the slimming welfare period, the dieting speed is slowed down, and the "overspeed period" and "flat fasting period" after the end of the physiological cycle are considered to be the best time to lose weight, and you can lose weight through dieting and exercise; In the "buffer period" before menstruation, slow down the speed of weight loss and prepare for the next physiological cycle to lose weight. It is said that this diet takes advantage of the changes of hormones secreted by women in their physiological cycle. Because of the rapid metabolism in the days when estrogen is secreted, it is very effective to lose weight, while in the first half of menstruation, it is unfavorable to lose weight because of the role of progesterone. After reading the introduction of the Physiological Cycle Diet, Xiaojie conducted an experiment. In the first "slimming overspeed period", she ate less and exercised more, and also cooperated with bananas and honey to relieve constipation. As a result, she lost 2 kilograms a week, but this diet did not bring "good news" to Xiaojie in the following "slimming fasting period". Wait until the second month of the "slimming overspeed period", Xiaojie did the same thing again, but did not achieve the "results" of the first month. Xiaojie, who had no hope, terminated his weight loss plan. Is it scientific to use the physiological cycle to lose weight? Wei Li, chief physician of obstetrics and gynecology department of Henan Provincial People's Hospital, said: "This method is unscientific." Wei Li explained that strictly speaking, the estrogen and progesterone secreted by women do change during the physiological cycle, but the amount of this change is not very large, and the time to reach the peak is short, which is not enough to have a great impact on the metabolism and body shape in the body. However, Xiaojie's obvious weight loss effect at the initial stage of trial may be due to the excretion of feces and water in the body, so the subsequent weight loss effect is not obvious. Kang Zhiyuan, deputy director of the Department of Obstetrics and Gynecology, the First Affiliated Hospital of Henan College of Traditional Chinese Medicine, pointed out that in the week before menstruation, some women gained weight because of edema, which is actually a pathological condition and needs to be adjusted by means of drugs. Losing weight is a long-term thing. "Losing weight should be a long-term thing. At all times, we must achieve a balanced nutrition. " Wei Li pointed out that obesity is due to excessive accumulation of body fat, which makes the body look bloated. If you want to lose weight, you should start with every meal every day, eat less high-calorie and high-fat foods, and take into account the comprehensiveness of nutrition. Also, obesity caused by excessive body fat is unhealthy, and proper weight loss is beyond reproach. But if excessive weight loss leads to too little fat storage in the body, it will affect menstruation and fertility. Because fat is closely related to human reproductive function, it plays an important regulatory role in the reproductive system. The body fat content of adult women accounts for 26%-30% of the whole body weight, and the fat content must reach at least 22% of the body weight in order to maintain normal menstrual cycle and have reproductive function. This is because fat participates in the transformation, metabolism and storage of sex hormones and is closely related to reproductive function. Women who are too thin and have too little fat have abnormal gonadotropin secretion in quantity and time, which will affect ovarian function and lead to menstrual disorder, even amenorrhea or infertility.