Sun exposure should not be
recommended, because solar radiation is considered a
human carcinogen based on studies in human subjects that
indicate increased risk of skin cancer (malignant melanoma
and non-melanocytic cancer), as well as melanoma of the
eye and non-Hodgkin’s lymphoma(43) and the risk of
melanoma from sunburn continues throughout adulthood
and not just from sunburns early in life(44).