Subject: How to sleep better and live longer; 2025’s biggest medical breakthroughs; is there a low testosterone crisis?

Sender: National Geographic
Political Party: n/a
Country: United States
State/Locality: n/a
Office: n/a

From	National Geographic Health <[email protected]>
Subject	How to sleep better and live longer; 2025’s biggest medical breakthroughs; is there a low testosterone crisis?
Date	December 16, 2025 7:11 PM

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