I agree with everything written in this post about the benefits of sunlight exposure in producing Vitamin D. However, I can not stress enough how important it is to avoid sunlight exposure during midday specifically from 10a - 3p due to the significant increase of harmful ultraviolet radiation reaching Earth’s surface. Where I’m from, in South Florida the UV index is almost never below 10 during midday. The ozone layer is clearly not filtering out the UVb and UVc radiation as it once did. Dane Wigington @ www.geoengineeringwatch.org has more information about this topic including readings from a UV meter to backup what is being said. Good article and as always seek the truth my friends.