claim: “sunscreen and then skin cancer, it's a direct correlation”; wearing sunglasses increases the risk of sunburn; sunscreen reduces vitamin D production
evidence: Skin cancers were the most common group of cancers diagnosed worldwide in 2022. Although some sunlight stimulates vitamin D production and provides health benefits, overexposure to ultraviolet sun radiation is the primary cause of skin cancer. Medical associations and public health authorities recommend limiting exposure and using sunscreen regularly when outdoors to minimize this risk.