bsc daily gk

 bsc daily gk

bsc daily gk Published this article page no 52 ider the following analogy: Have you ever left a basketball outside in the hot summer sun for a leng hy period of time? And after you retrieved the ball, you immediately notice that the elasticity of the ball is weakened—it feels “rubbery” and never quite “bounces back”? This is exactly what happens to your skin as a result of prolonged UV-A exposure. Both UV-B and UV-A rays have cumulative affects and coupled together often lead to melanoma skin cancer.Thusly, make sure you understand “SPF” when purchasing a brand of sunscreen, and do not be fooled by those that claim to deliver a high level of protection. For starters, “SPF” stands for sun protection factor (or “sunburn protection factor”). The way SPF works can be best described by the following example: A SPF 20 sunscreen is only allowing five out of every 100 UV protons to reach your skin. In other words, it is blocking out 95% of the UV rays from reaching your skin. That being said, dermatologist-oncologist Sancy A. Leachman, director of the Tom C. Mathews Jr. Familial Melanoma Research Clinic at the Huntsman Cancer Institute, recommends a SPF 15 sunscreen as ideal for daily, year-round use. Yet, if you are planning a long, leisurely day at the lake (or even a marathon day on the ski slopes), you will want to opt for a SPF 30 sunscreen, such as Blue Lizard Australian Sunscreen, and be sure to apply the 30-20-2 rule so as to prevent a painful reminder of your day of recreation monthly gk capsule buy.

bsc daily gk