Although it's been known for some time that too much UV radiation can be harmful, new information may now make these warnings even more important. Some scientists have suggested recently that there may be an association between UVA radiation and malignant melanoma, the most serious type of skin cancer. UV radiation from the sun, tanning beds, or from sun lamps may cause skin cancer. While skin cancer has been associated with sunburn, moderate tanning may also produce the same effect. UV radiation can also have a damaging effect on the immune system and cause premature aging of the skin, giving it a wrinkled, leathery appearance.
People sometimes associate a suntan with good health and vitality.
The number of skin cancer cases has been rising over the years, and experts say that this is due to increasing exposure to UV radiation from the sun, tanning beds, and sun lamps. More than 1 million new skin cancer cases are likely to be diagnosed in the U.S. this year. Malignant melanoma, now with a suspected link to UVA exposure, is often fatal, if not detected early. The number of cases of melanoma is rising in the U.S., with an estimated 38,300 cases and 7,300 deaths anticipated this year. Skin aging and cancer are delayed effects that don't usually show up for many years after the exposure.