Your Health: Protection from sun’s rays
by Terry Hollenbeck, M.D.
Jun 07, 2012 | 1025 views | 0 0 comments | 9 9 recommendations | email to a friend | print

I’d like to make my annual plea for the liberal use of sunscreen to protect all of us, young and old from the damaging effects of the sun.

Please understand that the “healthy” bronze tan color that many people seek is actually how the skin demonstrates that it has been damaged by the sun.

The sun produces two types of invisible light. One is ultraviolet A, which is the ray that produces a tan but causes skin damage and aging — think wrinkles and “old age” skin spots. The other is ultraviolet B, which causes the uncomfortable sunburn. Both types can cause skin cancer, especially the deadly melanoma.

This year in the U.S., there will be about 76,000 new cases of melanoma, with about 9,000 deaths. These statistics can be reduced significantly by protecting our skin from the sun.

The damaging rays from the sun are most intense between the hours of 10 a.m. and 4 p.m.

These are my suggestions:

- Always start the summer season with a new, fresh tube of sunscreen. Price has nothing to do with performance.

- Use a sunscreen with an SPF rating of at least 30. Higher than 50 is probably not necessary.

- A sunscreen should be labeled “broad spectrum,” protecting against both UVA and UVB, and should be water and sweat resistant.

- Use at least 1 ounce (2 tablespoons) for your entire body, and apply liberally to the face, ears and neck.

- Don’t overlook applying to feet, the back of the neck and bald spots.

- Apply at least 20 minutes before sun exposure and every two hours thereafter — more frequently if swimming or sweating profusely.

- Avoid using sunscreen sprays on children, as they can inhale the chemical ingredients. Use the lotion form only.

- Whenever possible, wear light-colored, tightly knit clothing and brimmed hats while in the sun.

- Avoid tanning salons, where damage similar to the effects of the sun can be done to the skin.

A sunscreen that has always been a favorite of mine, and one just recently highly recommended by Consumer Reports Magazine, is a brand called NO-AD. This product comes with an SPF of either 30 or 45 and is probably the cheapest sunscreen product on the shelves.

Enjoy your outdoor summer activities, but do yourselves — and especially your children — a favor by protecting your skin and theirs from both damage and cancer by properly using a good sunscreen product.

- Terry Hollenbeck, M.D., is an urgent-care physician at Palo Alto Medical Foundation Santa Cruz in Scotts Valley. Readers can view his previous columns on his website, valleydoctor.wordpress.com, or email him at valleydoctor@sbcglobal.net. Information in this column is not intended to replace advice from your own health care professional. For any medical concern, consult your own doctor.

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