A University of Arizona nutrition professor told Coach Mike one thing in 1998 that he's never forgotten: 15 minutes in the sun gives you all the vitamin D your body needs for the day. In this episode, we unpack why that single sentence is the foundation of how Mike coaches youth athletes at Mighty Oak Athletic — and why the teenage UV-index obsession gets the science exactly backward. If you're a parent who wants your kid to understand that more isn't always better, this one's for you.

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