经常晒太阳可以补钙。人们通过晒太阳，促进维生素D的合成，维生素D增加人体对钙的吸收和利用，帮助婴幼儿预防软骨病和佝偻病，帮助老人降低骨质疏松的风险。
但是夏季的太阳，特别是中午11点到下午3点的太阳紫外线辐射很强，过度暴晒容易灼伤皮肤，加速皮肤老化，引起皮肤过敏或长色斑，所以夏季特别要注意防晒。
防晒伞和涂抹防晒霜都是有效的防晒方法，它们可以防止紫外线的照射，有效避免皮肤被损害，减少皮肤内部黑色素的沉积。
希望我们既能享受阳光的灿烂，又能拥有夏日的清凉！
Often basking in the sun can supplement calcium. People promote the synthesis of vitamin D by basking in the sun. Vitamin D increases the absorption and utilization of calcium in the human body, helps infants and young children prevent cartilage and rickets, and helps the elderly reduce the risk of osteoporosis.
But the summer sun, especially from 11 noon to 3 p.m., has strong ultraviolet radiation. Excessive sun exposure is easy to burn the skin, accelerate skin aging, cause skin allergies or color spots, so pay special attention to sunscreen in summer.
Sunscreen umbrellas and sunscreens are effective sunscreen methods to prevent ultraviolet radiation, effectively avoid skin damage, and reduce the deposition of melanin.
I hope we can not only enjoy the sunshine, but also have the cool summer!
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