1. james_painter says:

During the day, your body spends about a quarter of its energy on the work of your brain. Now a minute of math. If you don't do any sports, a woman burns an average of 1,000 calories a day, while a man burns 1,500. That's how many calories your body needs to keep you breathing and functioning. This means that a woman's brain requires an average of 250 calories a day, while a man's brain requires an average of 375 calories.

And here's what's important: if an athlete, unlike a person who likes to lie on the couch like a sack of potatoes, can spend both 3000 and 6000 calories, the brain will still not burn more than its 250 (for women) and 375 (for men). 250 calories (and 375, respectively) is his limit! He doesn't need any more, and he won't spend any more.

From the fact that you will think a lot — you will not burn a single extra calorie. Sometimes you hear someone say, ” Oh, I've been thinking so hard, my brain must have consumed so many calories, I'm going to get a chocolate bar to eat.” Nope, your brain hasn't burned any extra calories, it's just that you've been stressed out by intense mental stress and now you want to eat it sweet to make you feel better.

2. ivan_bozhitsky says:

In my personal experience, I say that increased mental activity contributes to greater calorie burning. Moreover, the dependence is directly proportional. Look at people who, under constant stress, lose a few pounds in 2-3 days. With the same diet, without physical exercises, but with strong mental loads, my weight kept exactly the same as with strong physical exercises with no mental ones. And it fell very much when they were combined. The brain eats well. And it doesn't have any limit.

3. grigory_chulanov says:

Yes, another article with mythology for those who have forgotten elementary school physics – the law of conservation of energy. Energy from food or stored reserves of the body can be converted either into useful work or into heat. During sleep, the temperature drops, the heartbeat and heat exchange with the environment slows down – energy consumption per unit of time is minimal. During wakefulness, energy consumption for maintaining body temperature and basic vital functions (including maintaining consciousness) increases, and the cost of movement/work is added. But the work must be physical. When preparing for the exam, work in the physical sense of increasing body temperature is usually not noted, so there is no need to talk about any” calorie burning ” from mental exertion.

4. mikhail_lyalin says:

source: rbcdaily.ru

5. mikhail_lagunov says:

I'll tell you for myself. I have traveled many times by car (driver) from Moscow to Izhevsk and back. This is 1200km. I often traveled in one day, without spending the night. I left at 5-6 in the morning and arrived at 22-23 in the evening. I only stopped at gas stations. For one such stage, I lost 1-1. 5 kg in weight. According to my calculations, calorie expenditure was 2000-2500 a day. I arrived very tired, my eyes hurt wildly. Working as a driver is a complete lack of physical work, you sit in the driver's seat, twist the steering wheel and step on the gas. Everything! All the work of the brain. Sharpens attention, a large load on the eyes. That is, this is an example of mental work . And my answer is: yes, the brain still spends calories!