Eterna: The Healthspan Room

Dr. Renée Allen on hormones, peptides, and longevity medicine — evidence-based guidance to restore your vitality and extend your healthspan at every stage.

The Healthspan Room Blog Posts

Why Hormone Therapy Works Differently in Summer — And What to Do About It

Why Hormone Therapy Works Differently in Summer — And What to Do About It

Why Hormone Therapy Works Differently in Summer — And What to Do About ItDr. Renée Allen
Published on: 28/07/2026

Your BHRT protocol was working beautifully. Then summer arrived. Here's the science behind why hormone therapy responds differently in heat — and how to optimize your protocol for the season.

hormone therapyBHRTsummer healthestradiolperimenopausemenopausehormone optimization
Beyond Recovery: How 2026's Regenerative Protocols Are Rewriting What's Possible in Midlife

Beyond Recovery: How 2026's Regenerative Protocols Are Rewriting What's Possible in Midlife

Beyond Recovery: How 2026's Regenerative Protocols Are Rewriting What's Possible in MidlifeDr. Renée Allen
Published on: 11/07/2026

Cellular biology research has accelerated to a point where we now understand the mechanisms of aging with a precision that simply didn't exist a decade ago.

metabolic healthinsulin resistancehormone therapyperimenopauseandropauselongevity medicinemenopausepeptide therapyhormone optimizationPersonalized Medicine
HCG vs. Testosterone Therapy: What Every Man Needs to Know About Andropause Treatment

HCG vs. Testosterone Therapy: What Every Man Needs to Know About Andropause Treatment

HCG vs. Testosterone Therapy: What Every Man Needs to Know About Andropause TreatmentDr. Renée Allen
Published on: 21/06/2026

Not all testosterone therapy is the same. Discover the critical differences between HCG therapy, enclomiphene, and TRT — and why choosing the right protocol based on your age, goals, and fertility status changes everything.

andropausetestosterone therapyHCGenclomiphenemale hormone healthlongevity medicinehormone optimization
Why Summer Stalls Your Metabolism — And What Your Hormones Have to Do With It

Why Summer Stalls Your Metabolism — And What Your Hormones Have to Do With It

Why Summer Stalls Your Metabolism — And What Your Hormones Have to Do With ItDr. Renée Allen
Published on: 08/06/2026

You're eating the same foods and training just as hard. But your metabolism feels like it stopped cooperating the moment summer arrived. Here's what's actually happening — and why it's hormonal.

metabolismmetabolic healthsummercortisolinsulin resistanceGLP-1weight managementhormone optimization