Seems kind of like a no brainer given what we know about skin cancer, but I'm kind of surprised if you control for that if it had any other great "opportunity" to increase your lifespan when you control for obvious ones like exercise, diet, and controlling stress. I'm not a big outside lover, but I do take a daily walk to hopefully get bit of vitamin D from it. I mostly exercise indoors and my hobbies are almost all indoors.