Maximum temperature: Exposure refers to being in direct sunlight with the highest temperature in a day for a long time (especially in summer).

The temperature is just right: drying refers to putting things in the sun or people or things absorbing light and heat in the sun.

2. Different degrees of sun exposure

Sun exposure includes exposure. Sunbathing is much bigger than sunbathing. Exposure and sun exposure have different effects on human body and biology.

3. Different drying time

The best time for sunbathing is from 8 am to 10. At this time, the sun has strong infrared rays and weak ultraviolet rays, which can promote blood circulation and remove blood stasis.

4 pm to 5 pm is also the best time to bask in the sun, which can promote the absorption of calcium and phosphorus in the intestine, enhance physical fitness and promote normal calcification of bones.

The best exposure time is between 10 and 3 pm.

Extended data

Precautions for sunbathing

1, it is best to wear red clothes in the sun, because the long-wave radiation of red clothes can quickly "eat" the short-wave ultraviolet rays with strong lethality, and it is best not to wear black clothes.

2. When sunbathing, you should take off your hat and gloves, expose your skin as much as possible, and let the sun get in close contact with your skin.

Sunbathing through the glass window is not effective. It is best to be outdoors or on a spacious balcony.

Baidu encyclopedia-basking in the sun