Facts don’t lie—nature knows best. UVB rays are essential for your health, yet we’ve been taught to block them with sunscreen and glass windows. Here’s why that’s a problem: Vitamin D Production: UVB rays are the only source of natural vitamin D synthesis in your skin. This vitamin is crucial for bone health, immune support, and reducing inflammation. Glass windows and most sunscreens block UVB completely, robbing you of this vital nutrient. UVB rays also produce hundreds of other photoproducts