In this week’s Health newsletter: Is there a low testosterone crisis? Plus, the medical breakthroughs that gave us hope in 2025, how holiday lights affect your body, and why this flu season might be worse than usual.

But first: A diet created by scientists and chefs can help you sleep better and live longer. 

The Mediterranean diet’s colder-climate cousin comes with the same health benefits thanks to its combination of anti-inflammatory- and antioxidant-rich foods. 

From custom gene editing to a discovery that could help stop pancreatic cancer before it starts, these advances offer a glimpse at the future of human health.

PAID CONTENT FOR ARGENX

Among manta rays and sea turtles, a journey of wonder and perseverance unfolds

National Geographic photographer Josh Cogan joins Joey, who lives with CIDP (chronic inflammatory demyelinating polyneuropathy), on a journey to Hawaii’s Big Island. From sea turtles to manta rays, each encounter becomes a moment of quiet resilience.

Today’s newsletter was edited and curated by Sidney Madden and produced by Amanda Williams-Bryant. Did someone forward this to you? Sign up here to get this newsletter and more.