Excessive sun exposure over a period of years is a known risk factor for melanoma (a malignant skin cancer). Sunscreens were developed to help prevent sunburns which are associated with melanoma risk. Now Australian researchers have shown in a large 14 year, community-based study that melanoma risk was reduced by 50% in those who used sunscreen (SPF16) daily compared to those who used it on a discretionary basis.
PositiveTip: Twenty minutes daily of noon-time sun exposure may be good for Vitamin D levels, and daily use of sunscreen seems to reduce the risk of melanoma, especially in sunny areas of the world.