• Breast Development

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    explains that cannabis can influence hormonal activity, particularly by increasing aromatase activity. This enzyme converts testosterone into estrogen, leading to potential breast development in males, known as gynecomastia. This phenomenon, often observed anecdotally among marijuana users, indicates higher estrogen levels due to cannabis use 1 2.

    Furthermore, smoking marijuana during pregnancy may alter fetal hormone patterns, promoting higher estrogen outcomes. This could counteract the masculinizing effects of testosterone during fetal development. Such implications underscore the significance of understanding the hormonal impacts of cannabis, especially during crucial developmental stages like puberty and pregnancy 1.

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