Бег зимой ❄️ Польза 😃 или вред 🤒?

The best deals on Simple Run running courses for our subscribers - https://simplerun.ru/ytpromo Running in low temperatures can lead to a cold in your throat if you breathe through your mouth, or in your lungs if you breathe deeply. Therefore, in general, it's better to run on a treadmill or indoors at -10°C. However, most of us know that people can run even in the most severe frost. This is because the air we inhale in our lungs becomes almost equal to our body's temperature. Explanation: The total capacity of the lungs is 5 liters, occupying most of the chest cavity. However, we only use 1/10th of this volume when breathing. A normal inhalation and exhalation is about 0.5 liters (the so-called tidal volume). Thus, the inhaled frosty air is diluted almost 10-fold. If we inhale air at -10°C, its temperature in the lungs will still be over +30°C. When it's -30°C outside, we instinctively breathe shallowly, as deep breathing can lead to respiratory illnesses (bronchitis, pneumonia, etc.). Now that we've learned about our breathing, I suggest we solve a problem. Calculate the average volume of air a person inhales per day. Again, one breath is half a liter. You have all the other information. Choose the correct answer in the poll and share your calculations in the comments. How much does air weigh? Air has weight. One cubic meter of air at room temperature weighs 1.2 kg. A cubic meter of cold air weighs more, and the colder it is, the more air weighs. For example, at -100°C, the difference compared to room temperature air will be more than 10%. When it's -30°C outside, we instinctively breathe shallowly, as deep breathing can lead to respiratory problems (bronchitis, pneumonia, etc.) //Example: sipping water//. I can illustrate this by taking the deepest possible breath. It contains about 2 liters of air.