What No One Tells You about Testosterone Replacement Therapy

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  Understanding the human body is a team effort.

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  That's where the Yakult group comes in.

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  Researchers at Yakult have been delving into the secrets of probiotics for 90 years.

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  Yakult also partners with Nature Portfolio to advance gut microbiome science through the Global Grants for Gut Health,

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  an investigator-led research program.

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  To learn more about Yakult, visit yakult.co.jp.

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  That's Y-A-K-U-L-T dot C-O dot J-P.

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  When it comes to a guide for For Scientific American Science Quickly, I'm Rachel Feltman.

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  Whether it's framed as a cure-all for fatigue and low libido,

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  or a shortcut to gaining muscle mass, testosterone replacement therapy,

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  or TRT, is all over the internet these days.

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  But how much of the hype is actually backed by science?

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  Here to help us make sense of the testosterone boom is Stephanie Pappas,

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  a freelance reporter based in Colorado.

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  Stephanie recently covered the growing popularity and availability of TRT for Scientific American.

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  Thanks so much for coming on to chat.

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  Thank you.

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  So you recently wrote about testosterone replacement therapy for Scientific American.

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  For folks who are not on the right part of the internet to have heard all about this or maybe staying off the wrong parts of the internet,

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  depending on your perspective, what's going on with TRT right now?

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