sunlight

Sun Safety App Claims to Help Reduce Risk of Overexposure

June 5, 2012 | by Walter Jessen

Time frolicking outdoors in the sun is as an integral part of summer. However, sunlight contains ultraviolet (UV) rays that promote skin damage and aging, and increase the risk of skin cancer. The Skin Cancer Foundation warns that sunscreen is critical during time outdoors, regardless of skin type. While new FDA sunscreen regulations promise to provide consumers with more accurate information about the degree of protection their sunscreen is providing, the CDC warns that sunscreen is only one part of the protective equation, and recommends protective clothing and judicious use of shade during intense sunlight hours.

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Q&A: What Do My Cholesterol Levels Mean?

March 2, 2012 | by Kirstin Hendrickson

Question: I had my cholesterol checked, and I got four numbers back. Which one is most important, and what do the numbers mean with regard to my health?

Image credit: Focus on cholesterol via Shutterstock

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SODIS Method Makes Water Safe to Drink

July 25, 2011 | by Walter Jessen

Each year, nearly one billion people around the world lack access to safe, clean water [1]. Water is essential for life, yet less than 1% of water on the planet is safe to drink. This is especially a problem in developing countries or during natural disasters. Take Hurricane Katrina: back in 2005 when it hit the Gulf Coast, one of the biggest needs for storm victims was access to clean drinking water.

In the United States and Europe, people take it for granted that when they turn on the faucet, clean water will flow out. Indeed, a single flush of a toilet in the West uses more water than most Africans have to perform an entire day’s washing, cleaning, cooking and drinking [2].

Securing access to safe water worldwide is vitally important. Clean water is essential for agriculture, food and energy production, recreation and reduction of poverty. More than 2 million people, most of them children, die every year from water-borne diseases. And time is of the essence: by 2020, more people could die of water-related diseases than those that have died due to HIV/AIDS [2].

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Surviving Summer: the Good, the Bad and the Ugly

June 15, 2011 | by Walter Jessen

Summer is the hottest of the four seasons. At the summer solstice, which occurs on June 21st in the Northern Hemisphere and December 22nd in the Southern Hemisphere (when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere and vice versa), the days are longest and the nights are shortest. Summer is a great time to spend time outdoors and practice a healthy lifestyle. There are plenty of chances to eat fresh fruits and vegetables, get some sun, and get in shape, whether it be by playing a sport, exercising or just working around the yard.

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Sun Exposure, Vitamin D Can Affect Breakdown of Medicines

May 2, 2011 | by Walter Jessen

Genetic variation has been though to be responsible for the differences between people to metabolize certain drugs. The results of a recent study from the Karolinska Institutet in Sweden suggest that it may be even more complicated. Swedish reserchers have found that the body’s ability to break down medicines may be closely related to sunlight exposure and vitamin D, and thus may vary with the seasons. The study, published in the journal Drug Metabolism & Disposition, offers a completely new model to explain individual differences in the effects of drugs [1].