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Calories: how much?
Once I watched a science film about healthy eating, production seems to be the BBC. The journalist asked passers-by the same question: “What is calorie?” And no one could answer. Everyone said: this is something that is in the products. There are a lot of them in chocolate, but no one knew exactly what it really was.
I admit, I also learned a scientific definition only when I began to seriously become interested in issues of excess weight. In reference books it is written that calorie (more correctly kilocalorie) is the amount of energy needed to heat 1 liter of water at 1 ° C. I think it’s not necessary to remember this definition, because we are not in a physics lesson. But it’s important to understand that calorie is a unit of energy, and not something else. (In ordinary life, for simplicity, everyone talks about calories, not calories.)
A person spends a certain amount of energy per day. While he is going to work, walks in the park, takes a shower, even when he sleeps, the body constantly consumes energy.
It is believed that during the night a person loses three hundred calories, although nothing seems to be doing. In one hour of intense training, when you leave the gym in a completely wet T-shirt, eight hundred calories are spent. But just shaping more than five hundred of you will not pull.
If you do not go to extremes (sleep and sport), then the figures are approximately the following: in one hour spent lying down, a person loses only twenty-five calories, sitting - fifty, standing
- one hundred. When walking, of course, even more.
I write these lines, and on one of the TV channels the host says: “Celery is an ideal product for losing weight. When you eat it, a person spends more calories than he receives. ”
Yes it is. We spend energy when we eat. And also - when we talk, cook, clean up the apartment, think.
By the way, an important note: in the cold season, additional energy is needed to maintain normal body temperature, so you want to eat more in winter (this is just a good example when our “liters” are heated to “degrees”, as in the definition). That is why many women have extra centimeters on the waist and hips.
So, if you add up all the calories we need in order to live one day, you get quite a lot. For a man - 2500. A large woman should receive about 2200 calories per day, a miniature - 2000. For athletes, the daily calorie intake will be higher
- 3000 for men and 2500 for women.
It is important to understand that the body has nowhere else to take energy from, except from food. Every day a person should eat enough to ensure the functioning of his body.
The caloric content of each product is different, it is always indicated on the label, I think this should not be explained in detail. Suppose you eat a hearty breakfast, lunch, dinner - each with 500 calories or a little more. It will turn out 1500-1700. And another 500 calories will contain drinks drunk per day. In total, 2000-2200 will be released - as much as a woman needs in order not to recover and not lose weight.
If your body has not received the amount of energy necessary for normal work, it will turn to fat reserves and will draw energy from there. Then the most cherished desire will be fulfilled - you will lose weight! This is what many of the diets are based on.
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Calories: how much?
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