Lose 100 pounds in half a year. If celebrities can do it, can you do it too?

Recently, the news that a certain star lost 100 pounds in half a year for filming a movie has become a hot topic. This has really made many friends who want to lose weight even in their dreams feel very moved. In fact, there are many news reports about stars who quickly gain or lose weight in a short period of time. How did they do it? Can we try it?

In fact, whether it is losing weight or gaining weight in life, it is not an easy thing, especially to complete it in a short period of time. Back to the question just now, can ordinary people do it? A good news and a bad news, which one do you want to hear first? The good news is that ordinary people can also lose weight quickly in a short period of time. However, there is also a bad news that the price is very high, and this price is health risks, and this kind of weight loss also has a very high chance of regaining weight.

Let’s first talk about how celebrities lose weight quickly.

In fact, this is not mysterious, but very scientific. If you want to lose weight, you have to squeeze out all the "private" energy hidden in fat cells. As for how to squeeze it? The junior high school physics teacher once told us that energy is conserved. As long as there is a difference between consumption and acquisition, fat will burn to produce energy. However, the faster and more you want to consume, the harder you have to be on yourself.

I have paid attention to the experience shared by celebrities. During the period of rapid weight loss, they usually consume 1200-1500 calories per day. What does this mean? The basal metabolism of an average adult is about 1000-1500 calories, which means that this amount of calories is enough to maintain a normal life. In order to achieve such a low calorie level without making themselves too hungry, they are very careful when choosing food. They will choose low-calorie foods, such as vegetables, not too sweet fruits, and lean meats such as chicken breasts. They rarely eat staple foods that provide carbohydrates.

In terms of exercise, they mainly adopt high-intensity training, such as weight training, high-intensity interval training, etc. These trainings can enhance muscle strength and explosive power and promote fat burning. For example, a Hong Kong actress named Zheng runs and does dumbbell training for more than 2 hours every day. Generally, moderate-intensity exercise consumes 500-1000 calories per hour, and to lose one kilogram of weight, it consumes about 7700 calories. How fast you want to lose weight is just an elementary school math problem.

Back to the second question, is it safe to do this? Of course there is a problem. A large amount of medical evidence has proved that rapid weight gain or loss will bring health risks. Take weight loss as an example. Rapid weight loss will cause sagging due to untimely skin retraction. Women will also experience menstrual abnormalities due to low body fat percentage. Insufficient energy and nutrient supply will cause malnutrition and low immune function. High-intensity exercise will also increase heart and circulatory stress and induce cardiovascular disease.

A movie star named Huang revealed in an interview that he lost 25 kilograms in a month, but it left him with sequelae, including frequent stomach discomfort and occasional heart palpitations. He often had to rest during filming because of heart discomfort.

The same is true for weight gain. Due to the excessive supply of energy, not only will the burden on blood circulation and digestion be increased, but the body will also develop fatty liver and other problems due to its inability to adapt in a short period of time. A man named Zheng had to eat five meals a day in order to gain 40 kilograms in two months. This caused his blood pressure, blood lipids and visceral fat to exceed the standard, and he would pant heavily when running.

Celebrities gain or lose weight quickly for work, but for ordinary people, this lifestyle is really not recommended.

So, what is the best speed for weight loss? The answer is 1-2 pounds per week.

In fact, the most important thing for weight loss is perseverance and scientific methods. It can't be rushed, and it is not recommended to follow the methods on the Internet at will. It is best to consult a doctor to have a reasonable assessment of your weight, and then formulate a diet and exercise plan according to your physical condition, and regularly monitor your health indicators. Only in this way can you lose weight healthily.

Moreover, this primary obesity is not without reason. In addition to genetic factors, it is either "eating too much" or "laziness". Therefore, in order to avoid gaining weight again, you must change these unhealthy lifestyles such as drinking milk tea, ordering takeout and fast food, and staying at home after get off work. Otherwise, if you work hard to lose that little bit of fat, borrowing the classic saying of Big Bad Wolf, the fat "will definitely come back".

This article is a work supported by Science Popularization China Starry Sky Project

Author: Zhang Yu

Reviewer: Zhang Na, Associate Researcher, Doctoral Supervisor, Peking University School of Public Health

Produced by: China Association for Science and Technology Department of Science Popularization

Producer: China Science and Technology Press Co., Ltd., Beijing Zhongke Xinghe Culture Media Co., Ltd.