Understanding the UV Index: How Sunlight Affects Mood, Health, and Skin

Understanding the UV Index: How Sunlight Affects Mood, Health, and Skin Ultraviolet (UV) radiation from the Sun is a natural environmental factor that has both beneficial and harmful effects. On the one hand, it is essential for vitamin D synthesis, circadian rhythm regulation, and mood enhancement. On the other, excessive UV exposure causes skin damage, premature aging, and skin cancer. Understanding how the UV Index works and how to protect yourself effectively is crucial—especially as climate...