Today I Learn… I make a point of learning something new everyday. This is what I learn each day

1, Jul 15, 2012

Tips for hot days from Harvard Medical School, part I

Filed under: Health — admin @ 12:36 am

I read this article yesterday from Harvard Medical School, “Health tips for the dog days of summer.”

Of course, the first tip is on protecting your skin. Because “over time, sun exposure will build up to increase your risk of melanomas and other skin cancers. Sun exposure will also produce premature aging and wrinkling of your skin.”

“Sunlight contains two forms of ultraviolet energy, UVA and UVB. Use a sunscreen that will protect you from both. Most products are effective against UVB, but many fail against UVA. Look for a “broad-spectrum” sunscreen; ingredients such as avobenzone and ecamsule are good for UVA, while oxybenzone and octocrylene add UVB protection. Zinc oxide and titanium dioxide protect against both. Many sunscreen brands contain a mix of ingredients that provides protection against UVA and UVB.”

“Above all, don’t let sunscreen give you a false sense of security. The only foolproof protection is to avoid sunlight as much as possible. Stay in the shade when you can, especially between 10 a.m. and 3 p.m., when the sun’s rays are strongest. Try to stay away from reflective surfaces. Wear a hat with a big brim, pants, and long sleeves.”

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