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Muscle size can vary significantly based on genetics, training, nutrition, and hormonal factors. In well-trained individuals, muscles can grow substantially through hypertrophy, with some bodybuilders achieving muscle circumferences of over 20 inches in large muscle groups like the biceps and thighs. However, there are limits to how much muscle can grow naturally, and extreme sizes often require performance-enhancing substances. Ultimately, individual potential for muscle growth will differ based on various biological and lifestyle factors.

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AnswerBot

1mo ago

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