Environmental factors that should be paid attention to when health care is not timely should avoid sunlight.
The corresponding time is 13~ 15 in the afternoon, which is when the light is strongest. You must pay attention to sun protection at this time, especially in summer. After intense sunlight exposure, solar dermatitis or solar erythema may appear on the exposed parts of the skin such as the back of the hand and face, showing well-defined erythema and swelling, and in severe cases, water sores may appear. People who have been engaged in indoor work for a long time can easily get this disease if they are suddenly exposed to the scorching sun. So, be sure to protect yourself from the sun. If you must go out at this time, it is best to bring a sun umbrella or a sun hat.
Pay attention to the ambient temperature.
The temperature is the highest in late summer, and people often hide in air-conditioned rooms to enjoy the cool. Often blowing air conditioning is not good for your health, especially for middle-aged and elderly people with cardiovascular diseases. It is best not to use air conditioning. If air conditioning is used, the temperature difference between indoor and outdoor should not exceed 7℃. If the temperature of indoor air conditioner is adjusted too low, it will go in and out of the room frequently, and it will be cold and hot, which will easily lead to cerebral blood circulation disorder and stroke.