- Norway
- https://gitea-inner.fontree.cn/felicaomalley/felica2014/wiki/Exercise-and-Testosterone%3A-Types-of-Workouts%2C-Benefits
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A twin study estimated that about 53% of the variance in lean body mass is heritable,better source needed along with about 45% of the variance in muscle fiber proportion.
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2026-04-03
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