Research from Norway indicates that people who use tanning beds, and those who spend the most time in the sunlight, have better health due to the increased vitamin D levels produced by such habits. This is the type of article that must drive the sunscare industry crazy.
As people have moved out of the sunlight to avoid melanoma, the incidence of that disease has increased dramatically. Some of that increase has occurred after the advent of sunscreen use, indicating that sunscreens may do more harm than good. Now we have information indicating that sunscreens may inhibit the body's natural protection against sun damage. These chemical soups are a farce and have no place in good health habits. Read more about the way that the body 'sees" sunlight and responds by protecting it from overexposure.
The avoid-sunlight crowd insists that we should stay out away form those disease-causing sun rays to avoid disease. I often wonder how our ancestors, who spent most of their live outdoors working, ever survived. Strange that the human race is still intact after all that sun exposure, no? Especially, it is amazing that our vision has not been destroyed by the injudicious sun use of our ancestors. Can you think of anything more counterintuitive that the idea that a people who live in the sun for millennia suddenly need to protect themselves?
The people of Dubai have one of the highest bone disease risks in the world; about 1/4 of the population has bone disease. Lack of sunlight exposure due to obvious cultural habits cause reduced vitamin D levels, resulting in an incredibly high risk of osteoporosis. There needs to be some serious thinking in the medical community there to find methods of optimizing vitamin D levels.