Originally Posted by Andy G
"=BruceK;The thread might benefit from medical input."
Thanks Andy. Well, Bruce nailed it really Portuguese and others. The rather thin ozone layer down here certainly does contribute in a modest way, with higher UV resulting, (but yes, now improving since the avoidance of the organo-chlorines), but the main issue is indeed our largely Caucasian racial background, which does not bless us with as much melanin in our skin, and the tendency for our young to suffer many episodes of (usually accidental) sunburn when young, and it is that, coupled with the pale skin which leads to the high incidence of melanoma here.
However, yes.. we are also getting better at treating it early, with many skin clinics available now, and the constant message of preventing your kids from sunburn, and using adequate sun protection at all ages. As has already been said, we only need about 15 to 20 mins of sun a day to make enough vit D.