Mark Hyman, M.D.(@drmarkhyman):We’re living through the worst chronic disease epidemic in human history, and it’s not a mystery why. Our ultra-processed, nutrient-poor diet. The overload of environmental toxins. Chronic stress, poor sleep, disrupted circadian rhythms. Overuse of antibiotics. These changes compound across generations, disrupting the one system that ties it all together: the immune system. Want to fix chronic disease? Start by fixing what’s driving it.

Mark Hyman, M.D.

@drmarkhyman

15X NY Times bestseller. Tackling the root causes of chronic illness and our broken food & health system. Co-Founder & CMO @function

Joined December 2008

1K Following 1.5M Followers

Mark Hyman, M.D.@drmarkhyman

2026.08.31 17:00

We’re living through the worst chronic disease epidemic in human history, and it’s not a mystery why. Our ultra-processed, nutrient-poor diet. The overload of environmental toxins. Chronic stress, poor sleep, disrupted circadian rhythms. Overuse of antibiotics. These changes compound across generations, disrupting the one system that ties it all together: the immune system. Want to fix chronic disease? Start by fixing what’s driving it.