I find that when I am outside a lot starting early spring, and of course not go out during noon hours (11am-4pm) in high summer, I have almost no need for sunsc

I find that when I am outside a lot starting early spring, and of course not go out during noon hours (11am-4pm) in high summer, I have almost no need for sunscreen. If however I spend the spring mostly indoors with few opportunities to go outside, then no matter what I do later I can not habituate and will get 'sun allergy' for the season.