Summer is the season with the strongest ultraviolet rays. Friends who often go out must pay attention. When drying clothes, turn your back to the sun and try not to go out at noon. Take good protection when going out and also pay attention to light cloudy weather. April to September is the season with the strongest ultraviolet radiation; 10 am to 2 pm is the period of time when ultraviolet radiation is strongest; noon is the peak time of ultraviolet radiation; pay attention to clear weather, the amount of ultraviolet radiation when there are slight clouds is not much different from that in clear weather, so don't be careless; ultraviolet rays will reflect on the snow and become stronger, so you need to wear sunglasses or goggles on the snow-capped mountains; for every 1,000 meters increase in altitude, the amount of ultraviolet rays will increase by 6%-10%, so you should wear a hat when climbing. Parasols and wide-brimmed hats can help block the sun from shining on your face. Clothes that are black and made of polyester are more likely to absorb UV rays. For comfort reasons, it is best to wear light-colored cotton or linen clothing. No matter what the material is, as long as the yarn is finely woven and the material reaches a certain thickness, it can completely block ultraviolet rays. As for glasses and sunglasses, they can block the shorter wavelength UV-B waves that reach the ground, but they cannot block the longer wavelength UV-A waves. You can choose special lenses that block UV-A waves. Dark lenses will dilate the pupil of the eye, which will help light pass through, so light-colored lenses are better. However, Asians with dark eyes don’t need to pay special attention to eye sun protection unless you are going skiing, mountain climbing or to low-latitude areas. Here are some tips to protect yourself from UV rays: When hanging clothes to dry, face away from the sun; Try not to go out at noon, take precautions when going out, and be careful in cloudy weather; Put sunscreen on your car windows; be more careful than usual when going to the mountains or the beach, as sunglasses are a must on snowy mountains; When traveling to low latitudes (near the equator), be very careful about sun protection; try to use shade during the day; If you are more concerned about sun exposure, you can bring a parasol and a wide-brimmed hat with you; When going out, use sunglasses, scarves, handbags, and cardigans with sleeves more often; when you are tired or sleep deprived, try to avoid exposure to the sun. |
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