August 8th, 2011 by Jeffrey Benabio, M.D. in Health Tips
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Have you ever had a sunburn? First it hurts. Then it itches. And itches. And itches.
Why is that?
Sunburn is caused by ultraviolet (UV) radiation damage to your skin. Too much UV damages your skin cell’s DNA, and your immune system responds by killing off the bad cells. Because UV radiation doesn’t penetrate (unlike X-rays for example), it damages only the surface layer of your skin. This outermost layer happens to be loaded with special nerve fibers called C-fibers which are responsible for itch.
Itch is a mechanism to Read more »
*This blog post was originally published at The Dermatology Blog*
January 13th, 2011 by RamonaBatesMD in Health Tips, Research
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Not all maternal influence on daughter behavior is good. Take for example the influence of the unhealthy use of indoor tanning beds as presented in a recent Archives of Dermatology article (full reference below) which “investigated whether indoor tanning with one’s mother the first time would influence frequency of tanning later in life and whether it was associated with age of initiation.”
Joel Hillhouse, Ph.D., of East Tennessee State University-Johnson City and colleagues published a study the May 2010 issue of the Archives of Dermatology which looked at which health-based intervention worked best in reducing skin cancer risks. They found that “emphasizing the appearance-damaging effects of UV light, both indoor and outdoor, to young patients who are tanning is important no matter what their pathological tanning behavior status.”
For this study, Hillhouse and colleagues randomly selected a total of 800 female students who were then sent a screening questionnaire on their indoor tanning history. Those who reported ever indoor tanning (n = 252) were invited to participate in the study and offered an incentive ($5). A total of 227 (mean age, 21.33 years; age range, 18-30 years) agreed, signed informed consent documents, and completed assessments.
One of the questions asked who accompanied the participant the first time they indoor tanned (i.e. tanned alone, with friend, with mother, or other). Read more »
*This blog post was originally published at Suture for a Living*
Have you ever had a sunburn? First it hurts. Then it itches. And itches. And itches.
