The sun is the reason nearly all plant and animal life exists on this planet. Cut it off entirely and life as we know it would begin to collapse within weeks. Yet we have been advertised into avoiding it, told to slather on sunscreens and makeup loaded with chemicals that research has linked to metabolic and hormone disruption. This summer I lost count of how many conversations started the same way. Someone standing in full sun, reapplying sunscreen every hour, convinced that stepping outside...

Heart disease is the number one killer in this country. It takes more lives than every form of cancer and every accident combined. So when your cholesterol comes back high, the worry is real and the fear is fair. But for most people, the same thing happens next. You did the things. You ate better, you moved more, you tried. The panel still comes back high. And you walk out of the appointment holding a prescription and no answer to the only question that actually matters. Why is it high in the...

Most of us were told that fading vision is just part of getting older. Reading glasses. Trouble in low light. Dry eyes. The slow blur of newspaper print. It isn't aging. It's metabolism. Diabetic retinopathy is the leading cause of blindness in American adults, and the damage starts long before a diabetes diagnosis ever shows up on a chart. Every blood sugar spike over 120 mg/dL (6.7 mmol/L) is reaching your retina too. The eye is one of the most blood-sugar-sensitive tissues in the human...