10100:00/0:00Beyond Vitamin D: How to Tap the Sun’s Antiviral PowerVital SignsSep-29-2025Do the sun’s infrared and UV light health benefits outweigh those of sun-wrought and supplemented vitamin D? Watch our exclusive episode, only on Read MoreNTD TelevisionTerms of ServicePrivacy PolicyContact UsCookie SettingHelp Center© Copyright 2016 - 2026 All Rights Reserved