In autumn, there is plenty of sunshine and the temperature is suitable. After sunlight, ultraviolet rays in sunlight can promote the synthesis of vitamin D in the body and increase the absorption of calcium.

You can choose the time when the ultraviolet radiation is not particularly strong every day, such as 9~ 10 in the morning and 5~6 in the afternoon, so as to avoid heatstroke. Replenish water in time after sunbathing. In addition, don't bask in the sun through glass, because glass can block most ultraviolet rays and can't effectively synthesize vitamin D; If you are afraid of sunburn, you can apply sunscreen.