適度曬太陽 防骨質疏鬆
穿外套、戴帽子、撐陽傘，夏季烈日讓人避之惟恐不及，但專家警告：長期不曬太陽容易骨質疏鬆甚至造成骨折。
影響人體鈣吸收最主要因素是維他命D的代謝產物，而日照可以幫助人體產生維他命D，一個終日不見陽光的人患有骨質疏鬆機率遠高於正常人群。專家建議，最好每天曬半小時左右的太陽，能緩解因為缺鈣引起的骨質疏鬆，間接降低發生乳腺癌、卵巢癌等疾病機率，並可增加受孕概率。曬太陽的時間最好選擇紫外線比較不強的上午8點到10點或下午3點到4點間。
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