• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background Japanese (both in Japan and Hawaii) have a lower incidence of falls and of hip fracture than North American and European Caucasians, but the reasons for these differences are...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-08-21

Gonadal hormones, such as testosterone and estradiol, modulate muscle size and strength in males and females. However, the influence of sex hormones on muscle strength in micro- and...

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