Are you living in a bunker ? I live in the sun man. Of course if somebody has a very white skin that never see the sun and expose himself
for two hours under hot sun without any type of good cream protection thats no good and can give problem.
I used to go to the beach from april ,may so before is time to run shirtless my skin has the protection of melanin.
Anyway most of my route are inside big forests where is dark even at midday.
But if you want run under the sun and skin is white you can always use a good high protection cream