Fake News Non Pod #105: There is no 100% healthy way to "get a tan"
The article discusses the relationship between sun exposure, tanning, and skin protection, particularly during Brazil's summer vacation season. Beatriz, a biomedical scientist, explains that tanning is a natural defensive response of the body to UV radiation, which can damage DNA in skin cells. Specialized skin cells called melanocytes produce melanin, a pigment that helps protect against this damage, leading to a tan when exposed to the sun. While sun exposure can stimulate vitamin D production, it also carries risks, including the potential for cumulative damage to DNA, which may lead to skin cancer. Despite the effectiveness of sunscreen in blocking UV rays, it doesn't guarantee complete protection from long-term effects, as skin cancer affects around 130,000 people annually in Brazil. The article also mentions alternative tanning products, such as self-tanners, which claim to provide a tan without sun exposure. However, experts are cautious about the safety of these products due to insufficient scientific literature. Beatriz emphasizes the importance of sun safety measures: using sunscreen, reapplying it throughout the day, avoiding peak sun exposure, and taking extra precautions for individuals with a family history of skin cancer.