UVA and UVB rays are different wavelengths
of ultraviolet (UV) light from the sun. Both types are invisible and are equally
harmful. UVA rays penetrate deep into the skin, causing up to 80%
of Photo Aging and resulting in fine lines, wrinkles and dark spots. UVB
rays are the primary cause of the redness and blistering associated with sunburns.
Sun exposure can cause melanoma, one of the most dangerous types of skin cancer.
Sunscreen aside, is there anything else I can do to protect myself from the sun?
In addition to wearing a broad-spectrum
sunscreen with an SPF of 15 or higher, you can also avoid sun exposure between
10 a.m. and 4 p.m. when the sun's rays are strongest, seek shade whenever possible,
wear light-colored, sun-protective clothing and accessories such as a wide-brimmed
hat and sunglasses, and follow the "shadow rule": if your shadow is shorter than
you are, the sun's damaging rays are at their strongest.