People of different ages have great differences in skin tolerance to sunlight, so it is necessary to master the degree of sunlight. The time for the elderly to bask in the sun is arranged before 9: 00 am and after 4: 00 pm, and they will bask in the sun for 20 to 30 minutes every day to exercise. Young people's time in the sun can be appropriately extended, and they can have 1~2 hours of outdoor activities every day. Children's skin is delicate, so the sun exposure time should be appropriate, generally 40~60 minutes, and avoid between12 and 4 pm.
1, seize the perfect time for sunbathing.
At 6:00- 10:00, the infrared rays in the sunlight are relatively high and the ultraviolet rays are relatively low. Sunbathing can make people feel warm and achieve the effect of promoting blood circulation and removing blood stasis. The high A beam between 16:00- 17:00 can promote the absorption of calcium, phosphorus and other minerals in the intestine, promote bone calcification, and enhance resistance and immunity. The average healthy person can get 30 to 60 minutes of sunshine every day.
Don't wear too much in the sun.
Some people worry that exposure to ultraviolet rays will hurt their skin, leading to skin aging or blackening, so they will wear sunscreen clothing, but this is the opposite of staying in the sun. Wear sunscreen clothes, it is difficult for ultraviolet rays to penetrate the clothes and act on the skin, so try to take off sunscreen clothes. If you are afraid of sunburn, try to wear a hat with a brim.
Choose a place with fresh air to bask in the sun.
Because of the hot weather in summer, many people have air conditioning in their rooms and bask in the sun through the glass. In fact, this basically has no effect. Because glass absorbs ultraviolet rays, the correct way is to choose an environment with abundant sunshine and fresh air to bask in the sun. You can wear red clothes when you are in the sun, because red radiation waves can directly devour short-wave ultraviolet rays with slightly stronger lethality, which is beneficial to your health.
4. Sun your legs, back, hands and feet.
Often dry hands and feet can remove the cold in the body and protect the joints. Drying the back can dispel the cold in the spleen and stomach, promote food digestion, and dredge the back meridians, which is beneficial to heart and lung health.
5, can't take a bath before and after the sun.
Taking a bath immediately after sunbathing will wash away some substances that synthesize active vitamin D in the skin, which can't better promote mineral absorption, so try not to take a bath before and after sunbathing. Also, don't eat some light-sensitive foods before sunbathing, such as coriander, lemon, fish, shrimp and crab, celery, etc. Otherwise, it will cause solar dermatitis and may also lead to photosensitive drug eruption.
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Ultraviolet rays are strong in summer, so you must drink plenty of water in the sun to avoid dehydration. At the same time, wash your face and apply moisturizing cream to avoid too dry skin. During the sun, you can eat more foods rich in omega-3 fatty acids, which can protect your skin and reduce the damage of ultraviolet rays to your skin, such as salmon, chicken breast, mushrooms, animal liver and so on. If you feel dizzy in the sun, you need to rest in a cool place immediately to avoid heatstroke.
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