ping
this would explain why men going to tanning sessions are such you know what.
After being diagnosed with osteoporosis, I have been told by my new physician that small children, the elderly and especially small boned, fair skinned women over 40 are at a dangerous risk of bone loss due to complete lack of sunshine, which is one of only two ways to obtain Vitamin D - Calciferol.
One of the best sunscreens in the world is liquid "foundation" makeup. Creates a physical barrier. Growing up, my sister was allergic to most sunscreens. My mom got a foundation close to her skin color and slathered it on. My sister never burned and hardly even tanned while wearing the foundation. The cheap stuff works well.