Why sun protection could slash skin cancer's deadly global toll

Skin cancer remains one of the most common yet preventable diseases worldwide. A significant number of cases stem from exposure to UV rays, whether from sunlight or artificial sources. Despite this, many people still overlook proper sun protection, leading to avoidable diagnoses and deaths.

In 2023, Germany reported around 243,000 new cases of non-melanoma skin cancer. Globally, one in three cancer diagnoses is skin-related, with 80 to 90 per cent linked to UV exposure. Melanoma, the deadliest form, ranks among Canada's top 10 most diagnosed cancers, with an estimated 10,800 new cases in 2025.

Misconceptions about sunscreen persist, with some Canadians skipping it entirely or applying too little. A full-body application requires about an ounce—roughly the size of a shot glass. Yet even regular users who follow guidelines maintain healthy vitamin D levels. A tan, often seen as a cosmetic benefit, actually signals UV-induced DNA damage in skin cells. In Canada alone, melanoma claims three to four lives daily, highlighting the urgent need for better sun safety habits.

Proper sunscreen use and UV protection could prevent many skin cancer cases. With thousands diagnosed annually, awareness of correct application and risks remains critical. Simple measures, like using enough sunscreen and avoiding excessive sun exposure, could save lives.