Had a minor basil cell taken off my forehead 2 years ago. Asked why because I am always wearing a hat and the doc said most likely damage was done 20 years ago. I am outside all the time and wear a good sun screen always now. In addition, I keep a long sleeve shirt on while summer fishing in addition to a wide brim hat. The shirts are the light weight sun blocker types the pros use. I even got a face mask when I have to look into a low sun where the hat brim doesn't shade my face. I am on the water or ice over 150 days a year so I get plenty of sun.