How I Build Sun Tolerance & Solar Callus in Early Spring (Solo Episode)

Episode Highlights With Katie Why sunlight is essential for hormones, energy, mitochondria, circadian rhythm, and Vitamin D productionWhat a “solar callus” is and why the skin needs gradual training — just like musclesHow to safely build sun tolerance in early spring without burningThe internal factors that determine whether sunlight helps or harms you: minerals, hydration, antioxidants, and fat-soluble vitaminsWhy people who burn easily are often mineral-depletedHow I personally use apps lik...