Many experts advise against ever using a tanning bed. The ultraviolet and electromagnetic radiation they emit can potentially compromise your health. But if you are hooked on tanning with a tanning bed, research in Spain shows there may be one time of day when using these beds is particularly dangerous.If you expose your skin to a strong dose of ultraviolet light first thing in the morning or at night, your skin cells may be especially vulnerable to damage at that time. They are probably more prepared to deal with ultraviolet radiation at midday or in the afternoon.
“Our study shows that human skin stem cells possess an internal clock that allows them to very accurately know the time of day and helps them know when it is best to perform the correct function,” says researcher Salvador Aznar Benitah. “This is important because it seems that tissues need an accurate internal clock to remain healthy.”
The Spanish researchers found that distinct sets of genes in human skin stem cells show peak activity at different times of day. Genes involved in ultraviolet protection become most active during the daytime to guard these cells while they proliferate. They have better defenses at that time when they duplicate their DNA and are prepared to ward off radiation-induced damage.
http://easyhealthoptions.com/alternative-medicine/the-most-dangerous-time-to-use-a-tanning-bed/
