Traditional Culture Encyclopedia - Weather forecast - I have a headache when it's hot. What is the reason?

I have a headache when it's hot. What is the reason?

Clinical practice and modern medical research show that high temperature, stuffy humidity, thunderstorm, strong wind and sudden change of weather in summer often induce or aggravate headaches, while diet and sleep related to climate in summer often directly lead to headaches. Therefore, summer is a season of frequent headaches. "Ice cream headache" Eating ice cream in summer is a bit urgent. Some people get an electric shock on their heads, most of them are women in their twenties. This kind of headache is called "ice cream headache" in medical field. It is understood that ice cream headaches usually occur within 30 to 60 seconds after eating cold drinks in a hurry. This kind of pain is usually located in the middle of the forehead, and it stings within 10 to 20 seconds, and in rare cases it can last for 25 minutes. Neurologists say that this is because when cold drinks are imported, they will cause strong stimulation to the oral mucosa, which may cause the muscles and blood vessels in the head and face to contract, and the nerves will have radiation pain. When eating cold drinks, pay attention to keeping the upper jaw away from cold food as much as possible, which can effectively prevent the occurrence of "ice cream headache". In general, people should not eat frozen food or drinks quickly, and people with a history of headache and "ice cream headache" should eat less cold drinks. Once there is an "ice cream headache", you can massage the part repeatedly by hand to relieve the contraction of blood vessels and muscles caused by sudden cold stimulation on the head and relieve the pain. If the headache is particularly severe, you can take painkillers under the guidance of a doctor. In summer, water-deficient headache, the temperature is often higher than human body temperature, so sweat evaporates too much. If you don't replenish water in time, the human body is easy to dehydrate. When the human body is dehydrated, the cerebrospinal fluid will decrease and the gap between the skull and brain tissue will increase. When the body position changes, especially when standing, the brain tissue will "sink" or "shake" slightly, which will stretch the nerve roots and blood vessels of the brain and cause headache symptoms. For this headache caused by dehydration, a certain amount of normal saline can be injected to eliminate or alleviate dehydration. At the same time, patients should stay in bed, don't pillow, and keep their heads low. The key to prevent this headache is to replenish water in time. Diarrhea is easy in summer, and dehydration should be prevented when diarrhea occurs, otherwise it is easy to have a headache due to lack of water. Headache in summer, some people often have headaches in summer, especially when the temperature rises suddenly in early summer and in hot summer over 37℃, accompanied by loss of appetite, low fever and general fatigue, and will recover after cooling down in autumn. This kind of headache, called summer headache, is caused by autonomic nerve dysfunction, which mostly occurs in people who are weak and lack of qi and blood. The prevention of headache in summer is mainly to pay attention to the cooling environment, ensure a certain amount of sleep time, focus on light diet and eat more fruits and vegetables.

Every summer, many old people begin to have headaches and dizziness. Experts believe that there are many reasons for headaches in summer, and the common ones are as follows:

One is caused by excessive sweating. The evaporation of human sweat, if not replenished in time, will reduce the blood volume of human body and cause headache due to insufficient blood supply to the brain. This kind of headache is called low intracranial pressure or hypotensive headache.

The second is Bitter Summer. People in bitter summer often have poor sleep, weak spleen and stomach, loss of appetite and headaches. This kind of headache is due to malnutrition and low blood sugar, which leads to the lack of necessary energy in the brain.

The third is cold stimulation. Some people get headaches after drinking cold drinks to their heart's content. This is because sudden low temperature stimulation causes submucosal vasospasm, and at the same time reflexively causes cerebral vasospasm, which makes the brain unable to respond quickly to stress, thus causing headache. This kind of headache is called cold drink headache.

The fourth is emotional reasons. Some people are tired of the sultry environment, feel depressed and suffer from "emotional headache".

There are many reasons for headaches in summer, but they are all caused by reducing the necessary energy of the brain in different ways. Therefore, people who often have headaches in summer should adjust their diet, supplement a certain amount of salt, protein and vitamins, and keep a good mood. People suffering from "bitter summer" should eat light and digestible food.

In addition to timely rehydration, dehydration headache should also take a low pillow or no pillow position to make blood flow to the brain as much as possible.

Suggestions; Eating more bitter gourd in summer can help appetite, and it is also delicious to get angry.