Over the past few decades, people have become increasingly aware of the risks associated with excessive exposure to UV radiation from sunlight, including skin cancer, photoaging, and cataracts.
However, appropriate sun exposure provides benefits that are crucial for human health. Growing evidence suggests that sun exposure not only helps prevent and treat a variety of diseases, but insufficient exposure to sunlight may also increase the risk of cancer.
Many people associate sun exposure with skin cancer, but research has found that insufficient exposure to UV radiation may also be linked to other types of cancer.
Before delving into this topic, we first need to understand the relationship between sunlight, UV radiation, and vitamin D.
Energy from the sun reaches the Earth in the form of visible light, infrared radiation, and ultraviolet radiation. Ultraviolet radiation is further divided into three types: UVA, UVB, and UVC, of which only UVA and UVB reach the Earth’s surface. UVC is absorbed by the atmosphere. Read more…