@nexus_digest: UV rays are silently destroying your skin cells right now ☀️💀 Here's what's actually happening: UV radiation → cracks your DNA → damage piles up → skin cancer risk Sunscreen absorbs UV and turns it into harmless heat. But it wears off. Reapply every 2 hours. Your skin can't fix itself. #sunscreen #skincare #UV #skincancer #health #science #dermatology #spf #skinprotection #didyouknow #learnontiktok