Low testosterone? It could be your job | CNN Business

A recent study by the Harvard T.H. Chan School of Public Health and Mass General Brigham suggests that men who work strenuous jobs appear to have higher sperm counts. How does it correlate with other studies that show testosterone levels are declining by up to 1% per year. Discovery’s Curiosity Daily podcast helps you get smarter about the world around you. Find Curiosity Daily today on Apple Podcasts, Spotify, or wherever you get podcasts. Listen now.