The role of the sun cannot be overestimated as the most important cause of prematurely aging skin (called photoaging) and skin cancers. Overall, exposure to ultraviolet (referred to as UVA or UVB) radiation emanating from sunlight accounts for about 90% of the symptoms of premature skin aging, and most of these effects occur by age 20:
In addition to sunlight, other factors may hasten the formation of wrinkles:
The best way to prevent skin damage in any case is to avoid episodes of excessive sun exposure. The following are some specific guidelines:
In choosing a sunscreen, look at the ingredients. Preparations that help block UV radiation are sometimes classified as sunscreens or sunblocks according to the substances they contain. In general, sunscreens have contained or organic formulas and sunblocks inorganic ingredients.
The sun protection factor (SPF) on all sunscreen labels is a ratio based on the amount of UVB (not UVA) radiation required to turn sunscreen- or sunblock-treated skin red compared to non-treated skin.
Psoriasis is a skin disease that can have substantial psychological, emotional and social impact on a person with psoriasis and on his/her family and friends.
Some psoriasis sufferers have tried salt water to relieve their itchy or painful skin. Some have even made pilgrimages to the world’s saltiest lake, the Dead Sea.
Psoriasis is a skin disease that causes scaling and swelling. Skin cells grow deep in the skin and slowly rise to the surface. This process is called cell turnover, and it takes about a month. With psoriasis, it can happen in just a few days because the cells rise too fast and pile up on the surface.
Psoriasis is an immune-mediated, noncontagious, genetic disease manifesting in the skin and/or the joints. Psoriasis is a, lifelong skin disease.
Certain groups should have higher or lower SPFs depending on age and other factors: