Indeed, dieting reduces the calories we consume. Assuming that our living habits have not changed much, it means that the energy we consume every day is stable. Theoretically, dieting can make us lose weight. In fact, there is a temporary "hunger and thinness", but this thinness cannot last.
Why? Because your brain will stop you from losing weight. The brain is responsible for weight management, but it is not committed to keeping slim with you. All adjustments to the weight of the brain are devoted to maintaining stability and safety.
The so-called stability means that when we are adults, our weight usually fluctuates up and down that number, and there is no big change. The brain maintains the body weight and adipose tissue in a proper range by regulating the intake and consumption of calories by body organs.
But in this range of neither fat nor thin, how does the brain calculate how much a person should weigh? This is a complicated problem, which has not been clarified yet, but what is certain is that the brain will not listen to you.
The so-called safety means that the brain is always worried that you will starve to death, which is determined by the evolutionary history of mankind. How many days did our ancestors eat a full meal, and did not eat the last meal? After this domestication, human genes naturally tend to keep people full of energy to cope with possible food shortages.
So, how does your brain react when you try your best to starve yourself?
What? Reduced energy supply? Then I'll have to open source and cut expenditure. First, the brain will improve absorption efficiency. The energy absorbed by eating two bowls of rice can now be absorbed by eating one bowl of rice; Then the brain will spend less. It used to consume 300 calories a day, but now it only consumes 200 calories.
So, when you are hungry and thin, then your brain will help you open up new sources and cut down on expenses, and then you will continue to reduce your intake and eat less than when you started dieting, otherwise you will consume more energy, and you will be silently stored by your cautious brain.
Do you want to starve yourself if this cycle goes on?
What's more, in order to make you eat, the brain will also regulate your feelings and emotions, making you feel upset, restless and crazy, and making you feel great temptation when you see food. Can you continue to be hungry?