Do you always feel sleepy and listless when the weather is hot?

"Spring sleepy, autumn sleepy, summer sleepy", this kind of sleepy feeling spreading in the hot sun, is obviously much more severe than in spring and autumn. Mixed with irritability and weakness, it is unstoppable, and it is a direct hypnosis. Why do you feel sleepy in summer? In summer, because people go to bed late and get up early, there are many parties and lack of sleep, they may feel tired after studying and working all morning, and their brains are deprived of oxygen after meals, so they naturally want to doze off at noon. In addition, during the day, the temperature is high, sweating is much, and physical exertion is too large. In addition, at noon, the hot sun is in the sky. At this time, human blood vessels dilate and blood supply to the brain decreases, so people often feel depressed and sleepy. There is also a certain relationship between hyperhidrosis and sleepiness in summer, but this situation mainly occurs in the harsh high temperature working conditions. The human body sweats a lot and loses a certain amount of potassium, which leads to electrolyte disorder, which affects the normal operation of the human body and makes people feel tired and weak. How to relieve the drowsiness in summer? The simplest secret of "relieving difficulties" is to go to bed before 1 1 at night and take a nap at noon 15-30 minutes. A proper nap will relieve fatigue, rest the brain and body, and thus relax the body and mind. When people sleep, their metabolism is low. If they take a long nap, it is not easy to adjust after waking up, but it will make people feel weak. In addition, proper office exercise should be carried out, and office workers should get up and exercise every 1-2 hours to let their eyes see the distance and green, so as to relieve fatigue appropriately. Shrugging one's shoulders frequently is also a good way to relieve cervical pressure, thus relaxing muscles and promoting blood circulation. For electrolyte disorders in the body, it is necessary to drink some salty boiled water or refreshing drinks. Drinking coffee or strong tea to refresh yourself is also very effective. But caffeine in coffee will dilate blood vessels, and some people will have a headache after drinking it. It is suggested that such people can drink tea to refresh themselves. What foods can prevent drowsiness? Potassium deficiency in summer not only reduces energy and physical strength, but also reduces heat resistance, making people feel tired and weak. Severe potassium deficiency will lead to acid-base imbalance, metabolic disorder, arrhythmia, muscle weakness and laziness. Appropriate potassium supplementation is beneficial to improve the balance of potassium and sodium in the body, which can not only prevent the blood pressure from rising, but also prevent the blood pressure from being too low. Some anti-sleepy foods with high potassium content: 1. Among cereals, buckwheat, corn, sweet potato and soybean have higher potassium content. 2. Among fruits, bananas contain the most potassium. 3. Among vegetables, spinach, amaranth, coriander, rape, Chinese cabbage, celery, green onion, green garlic, lettuce, potato, yam, fresh peas and edamame have higher potassium content. 4. Seaweed is rich in potassium, such as laver, kelp and Sargassum fusiforme. Therefore, seaweed soup, steamed kelp fish, kelp pills, cold kelp and kelp/meat are all top-grade dishes for supplementing potassium in summer.