What's the deal with testosterone?

This week, Emily and Perry take on testosterone, the raging yang to last week's sober estrogen yin. Do men actually experience "manopause" in ways similar to women? How much testosterone is not enough, what are the risks of too much, and how do you know if you need an extra boost? And what does tes…

What's the deal with hormone replacement therapy?

This week, Emily, a woman, and Perry, a man, wade into the complicated world of hormone replacement therapy, the first of a two-part series on exogenous hormones and the sexes who love them. What do hormones do for women, and what happens when they recede? And why was HRT so closely -- and erroneou…

What's the deal with continuous glucose monitors?

This week, Emily and Perry discuss continuous glucose monitors -- a gamechanger for diabetics and just kind of an overabundance of information for everyone else. What does glucose do to the body and what's the value of tracking it, along with everything we eat? Should we be using this data to regul…

What's the deal with protein?

This week, Emily and Perry explore the vast array of protein vehicles that's taken over our influencer culture and supermarket aisles. How much protein are we told we need, and what's the over/under on how much we really need? What does protein do for our bodies anyway? And given the protein bars a…

What's the deal with creatine?

This week, Emily and Perry tackle creatine, a beloved amino acid derivative with surprisingly robust health properties. What is it actually doing to our muscles, and our brain? Pop a gummy, or stir in some powder, and find out. Plus: Casey Means might be out for Surgeon General, stem cells don't h…

What's the deal with stem cell therapy?

This week, Emily and Perry go toe-to-toe with the scammier side of the wellness industry: regenerative medicine clinics that claim to inject you with stem cells. Are they the fountain of youth? (No.) Are they even injecting you with stem cells? (Not really.) Are they preying on sick people? (Most d…

What's the deal with microplastics?

This week, Emily and Perry dive into the here, there, and everywhere of microplastics. We know they're in the air we breathe and the water we drink, but how bad are they for us, really? How do our bodies respond to them, and how long do they even stay inside us? And can they be avoided? Plus: Leuc…

What's the deal with red light therapy?

This week, Emily and Perry shine a light on red light therapy: its origins, its heroic use of the mighty mitochondria, and the supposed countless benefits (better mood, wound healing, facial rejuvenation, hair regrowth?) of sitting in front of a hot red light that may or may not even be able to pen…

What's the deal with GLP-1s?

This week, Emily and Perry discuss GLP-1s, those blockbuster weight-loss drugs that have taken the world by storm -- and not just what you already know about them. From the origins in Gila monster venom to the surprisingly long history of their use, they explore their effectiveness, side effects, l…

What's the deal with cold plunges and saunas?

This week, Emily and Perry plunge, as it were, into the temperature extremes: cold plunges and saunas. Is there any actual value to shocking your body with ice water or sweating out an ocean? Or are we just gluttons for punishment?  Plus: soaring measles rates, Jay Bhattacharya's double federal ap…