1. What is fat? Since talking about losing weight, past lives, who was fat, I'll tell you one thing. Fat is divided into white fat and brown fat. The fat we usually say is white fat, which is what we often say. Brown fat is rich in mitochondria, which can maintain body temperature by burning white fat in cold weather. But brown is the most in infancy, and gradually decreases after growing up.
The fats mentioned in medicine and weight loss are generally triglycerides and total cholesterol, which are also the four major blood lipid indexes of hospitals. When we gain weight, fat is actually stored in fat cells. Causing abnormal enlargement of fat cells. There are about 30 billion fat cells in our body. If each cell doubles, our weight will triple.
According to the different distribution parts of fat, it can be divided into subcutaneous fat and visceral fat. Although subcutaneous fat is not good-looking, it is far less harmful to health than visceral fat, so we must pay attention to visceral fat as an index to lose weight.
2. How did the fat come from? The general source of fat is that the fat we eat is related to excessive carbohydrate intake. Let's talk about this problem separately. When we eat some greasy food and fat, we will consume fat, which will be stored in fat cells, leading to the increase of the volume of fat cells.
Here, I want to talk about pig's trotters in particular. Many people always think that trotters can supplement collagen. In fact, this statement can't be completely wrong. Trotters do contain collagen. But it is impossible for you to supplement collagen by eating trotters, because the molecular weight of collagen in trotters is too large, which can be as high as 65438+100000 daltons (one unit).
The molecular weight of collagen absorbed by human body is below 3000 daltons. That is to say, the collagen in the trotters you eat is basically not absorbed, only the fat in the trotters, so you will get fatter and fatter when you eat the trotters.
Another source is excessive carbohydrate intake, which leads to excessive fat synthesis. The white rice and flour we eat are all foods with high glycemic index. After ingesting the human body, the human body will secrete insulin and quickly reduce blood sugar. If there is too much sugar, the remaining sugar will be synthesized into fat by insulin and stored in the body. In the long run, it is easy to cause islet fatigue and increase the risk of diabetes. So try to eat as much coarse grains as possible and take coarse grains as the staple food.
The process of fat decomposition in fitness is probably as follows: firstly, fat cells receive the energy signal from human body, and with the help of L-carnitine and other substances, fat is taken out of fat cells, and then burned on mitochondria, which is converted into triglycerides and free fatty acids under the catalysis of lipase.
Then fat provides a lot of energy (actually ATP) to the human body in the process of combustion and decomposition, and the products of fat decomposition, such as water, carbon dioxide, carcass, etc., are also excreted with human excretion and breathing. So some weight loss methods will test the color of the carcass, and the principle is also here.
4. What exercise can burn fat? In fact, in fitness, most exercises can consume fat, but according to the nature of exercise, the way of consuming fat is different, such as swimming, jogging and other aerobic exercises. At moderate and low intensity, the consumption of fat increases from half an hour after the start of exercise, exceeding the proportion of sugar energy supply.
To clarify a fact here, many people think that it takes half an hour to exercise before they start to consume fat. Actually, this is not right. In fact, the body is consuming fat from the beginning of exercise. But at this time the main body of energy supply is sugar. It takes more than half an hour for the energy supplier to get fat slowly. Therefore, continuous exercise does not exceed half an hour, which is of little use to fat consumption. Generally, when aerobic exercise lasts for half an hour-1 hour, fat consumption is the highest.
If aerobic exercise is active fat consumption, then anaerobic exercise is passive fat consumption. Many people will ask, why is anaerobic exercise a passive consumption of fat? Doesn't anaerobic exercise increase muscles? I'll explain it to you here.
It's actually quite simple. Anaerobic exercise is an exercise to increase muscle strength. After the muscle increases, the basal metabolic rate will also increase. The increase of basal metabolic rate means that the human body needs more energy and consumes more energy. In this way, after more muscles, the energy consumed has been increasing, so after anaerobic exercise increases muscles, it passively consumes fat.
To sum up: the decomposition of fat is a biochemical reaction. Some instruments on the market, such as the "fat buster", are just harvesting IQ tax, and the effect is not even comparable to skipping rope. The products of fat decomposition are mostly excreted through breathing, followed by urine and sweat. So I sweat a lot, and most of the loss is just water.