Animal Hormones in Humans?! 1920s Endocrine Experiments

Описание: Long before modern hormone therapy, 1920s doctors were implanting animal glands—yes, monkey testicles and sheep thyroids—into humans to reverse aging. This strange chapter in medical history reveals the roots of endocrine science and biohacking, with more hype than help. Discover the weird beginnings of hormone-based medicine in under 60 seconds.
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