Exposure to Chemicals in Sunscreen. While chemicals can protect us from the sun's harmful ultraviolet rays, research strongly suggests that at certain exposure levels, some of the chemicals in some sunscreen products may cause cancer in people. Many of these chemicals are considered hormone
https://www.breastcancer.org/risk/factors/sunscreen
不管你信不信,身边的例子让我深信。所以只想提醒一下,特别是肿瘤患者,不要为了锻炼每天擦,只有坏处没有好处。