Svartberg et al. (41) studied 1,548 healthy men in Norway (older than 25 years) and found bi-annual peaks for testosterone in winter and autumn.

Authors

• Person: Not available Organization: Frontiers
  Seasonal Changes of Serum Gonadotropins and Testosterone in ...

Sources

• Seasonal Changes of Serum Gonadotropins and Testosterone in ... www.frontiersin.org Frontiers via serper

Referenced by nodes (2)

• testosterone concept
• Norway location