SUN IS THE ORIGINAL PERFORMANCE-ENHANCING DRUG
Being outside isn’t just “nice” — it’s biochemical warfare in your favor. UV + full-spectrum daylight = a massive physiological software update. Here are the hidden levers the sun is pulling on your body: First: obvious but deep — vitamin D steroid-hormone power UVB hits your skin → converts 7-dehydrocholesterol into vitamin D₃. This isn’t […]