Skin cancer is the most common cancer in the United States, with over 5 million cases diagnosed each year, according to the American Cancer Society. Despite growing awareness, only about 30% of Americans regularly use sunscreen, as revealed by a CDC report. As the body’s largest organ, the skin plays a vital protective role. However, under-protection and late detection remain serious challenges, underscoring the importance of effective sun protection habits for long-term skin health.
Health
24. Understand the Role of PA Ratings The PA rating system, originally developed in Japan and now widely used in Asia and beyond, measures a sunscreen’s…