What's the harm of high temperature weather with the temperature exceeding 40 degrees?

High temperature weather exceeding 40 degrees may bring the following hazards:

1. heatstroke: In hot weather, the human body is easily affected by too much heat, losing its thermoregulation ability, leading to heatstroke. Symptoms of heatstroke include headache, dizziness, nausea, vomiting and weakness. In severe cases, it even leads to heatstroke, coma or death.

2. Increased cardiovascular system pressure: When the weather is hot, the human body will increase heat dissipation and blood will flow to the skin surface. This will lead to a greater burden on the heart and vascular system, which will easily lead to cardiovascular diseases such as heart disease and hypertension.

3. Respiratory system problems: The weather is hot and the air humidity is often low, which is easy to cause respiratory problems such as dry cough and throat discomfort. At the same time, there may be more particles and pollutants in the air during the heat wave, which will stimulate the respiratory tract.

4. Dehydration and electrolyte imbalance: When the weather is hot, the human body will sweat a lot, which will easily lead to the loss of water and electrolyte, leading to dehydration and electrolyte balance disorder. This will lead to thirst, fatigue, dizziness, muscle spasm and other symptoms, and may also lead to complications such as renal failure in severe cases.

5. Hygiene of food and drinking water: In hot weather, food and drinking water are easily polluted and deteriorated, which can easily lead to food poisoning and gastrointestinal diseases.

6. Increased risk of sunburn and skin cancer: Long-term exposure to high-temperature sunlight can easily lead to sunburn, which may lead to an increased risk of skin cancer in severe cases.

Therefore, in high temperature weather, we should pay attention to heatstroke prevention and cooling measures, reduce outdoor activities in high temperature period, make adequate water supplement, and avoid long-term exposure to the sun.