Thanks everyone,
I've known for years that I need it. I simply let it slide; to my detriment. For me it was the vigorous cardio that I let slide. And the need to spend more time outdoors being with nature. I never thought of it as the sun more like the plants and animals. My father gets depressed without sun though...
Thank you all for your responses. I need to learn how to quote many people inside my posts
Dorothy, your avatar cats are beautiful