Why You NEED Morning Sunlight: Hormones, Sleep & Energy Explained
9 Jul 2025 · 1 min

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Short German dialogue from a YouTube video explaining why morning sunlight matters: sunlight enables human production of vitamin D (described as acting like a hormone, aiding calcium transport and immunity, produced when UV interacts with skin cholesterol), stimulates circulation via vasomotor activity (affecting ~70% of circulation outside the heart), and helps reset the internal clock by lowering cortisol and increasing melatonin when appropriate—hence the importance of morning sun.










