Benefits: Blocks ultraviolet rays and protects the skin. Disadvantages: Does not promote body absorption.
The advantage of basking in the sun through glass is that basking in the sun through glass can prevent skin damage. Sun damage mainly comes from ultraviolet A and ultraviolet B. Ultraviolet A is a long wave that acts on the deep layers of the skin and acts slowly. Ultraviolet B is a medium wave ray that acts on the surface of the skin, first turning it red, then slowly brown.
The disadvantage of tanning through glass is that the glass absorbs the UV rays involved. Without ultraviolet rays, the body cannot synthesize vitamin D, so it cannot be absorbed by the body. 'body.
The best time to bask in the sun:
The time to bask in the sun every day should bebetween 10 a.m. and 2 p.m. more suitable for tanning. In summer, it is more appropriate to bask in the sun for about half an hour a day. In fall and winter, when the weather is colder, you can bask in the sun for two and a half hours a day.
What are the benefits of basking in the sun through a window?
(1) Clear glass will be tanned. Ordinary glass has a very low ability to block ultraviolet rays. It only refracts part of the ultraviolet rays, especially the transparent type can only delay tanning. Be aware that even if only a small amount of ultraviolet rays are reflected by glass or mirrors, you will get sunburned over time. However, if you are exposed to sunlight through glass, the intensity of ultraviolet rays will be weakened, and you. will generally not get sunburned.
(2) UV resistant glass will not be tanned. VSSome lenses are specially made, black or dark blue in color, and have a strong UV protection function. More than 99% of UV rays will be reflected. , blocking the You don't have to worry about getting tanned while wearing this type of glass.
Detailed information:
1. No more than 20 minutes. Exposure to sunlight promotes the synthesis of vitamin D, which helps the body absorb calcium. So we need to occasionally expose ourselves to the sun to replenish calcium. But be careful not to exceed 20 minutes, especially in summer, otherwise it may harm the skin if it is too long.
2. It is best to sunbathe between 8 and 9 a.m. Meanwhile, infrared rays have the upper hand and the intensity of ultraviolet rays is low, sothat the skin will not be burned by the sun, and it may promote blood circulation and cause disorders.
Advantages: Sunbathing through glass can prevent skin damage. Glass can prevent ultraviolet rays from penetrating, which can prevent ultraviolet rays from damaging the skin. In winter, the outside temperature is low, the wind is sometimes strong, and the elderly or children with limited mobility can prevent colds and illnesses.
In addition, basking in the sun through a glass will greatly reduce the effect of calcium supplementation, because UVB penetration is relatively low, a piece of paper can block UVB, not to mention glass thick. Ordinary white glass can transmit about 9% of UV rays below 320nm, while the transmission of low-e silver insulating glass is essentially 0%.
Precautionswhen basking in the sun
The time spent in the sun should not be too long. For most people, 10 to 20 minutes is enough. for children it is shorter and for the elderly it is longer, but it is generally recommended within 30 minutes. People who live at high altitudes and in long-term low-intensity hypoxic environments should extend their sun exposure time to 30 to 60 minutes per day. In winter, you should also extend the duration of exposure to the sun as much as possible.
Be careful when basking outdoors in the sun and take sun protection measures. For example, wearing sunglasses can prevent eye damage from direct sunlight, and wearing a hat can prevent your hair from getting sunburned. After spending time in the sun, make sure to drink more water and eat more fruits and vegetables.vegetables to supplement vitamin C, which can inhibit melanin production and prevent sun spots. ?