How to keep cold and warm in autumn and winter?

The first trick: dress scientifically. From a scientific point of view, keeping out the cold in winter does not depend on how many clothes you wear. Because clothes themselves do not generate heat, wearing clothes only enhances the warmth of the body.

From a physiological point of view, wearing too much clothes will inhibit the adaptability of thermoregulation function, but will weaken the ability to keep out the cold. Therefore, the correct way to dress is to choose light and warm down products. Too tight turtleneck underwear or sweaters, not only have a bad warm-keeping effect, but also easily oppress the carotid artery, resulting in insufficient blood supply to brain tissue, so it is better not to wear them.

In addition, it is best to wear a suitable hat when it is cold, which is also a good way to keep warm. Because the hair on our heads is thick and thick, it is very easy to dissipate heat. Physiologists have done experiments. At the temperature of 15℃, people who don't wear a hat and don't exercise often lose 1/3 of their whole body heat. At about 4℃, the lost heat increases to half of the total heat of human body. It can be seen that it is also very important to keep your head warm in cold weather.

The second measure is diet regulation. In cold weather, we can increase the supply of heat energy by eating more foods rich in fat, protein and carbohydrates. For example, lean meat, fish, milk, bean products and other foods rich in high-quality protein can not only replenish calories to the body, but also won't make you fat.