How GLP-1 Medications Actually Work
A plain-language look at what semaglutide, tirzepatide, and related drugs do inside the body, what the big trials showed, and where the science is still uncertain.
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GLP-1 Why GLP-1s Quiet Your Cravings
GLP-1 GLP-1s and Exercise: Better Together
Longevity GLP-1s and Longevity: The Healthspan Question
GLP-1 GLP-1s and the Willpower Myth
GLP-1 How GLP-1 Medications Actually Work
Semaglutide What the STEP Trials Showed About Semaglutide and Weight Loss
Tirzepatide Tirzepatide vs. Semaglutide: What the Head-to-Head Evidence Says
GLP-1 Managing the Most Common GLP-1 Side Effects
GLP-1 What Happens When You Stop Taking a GLP-1
Muscle & Recovery GLP-1s and Muscle Mass: What the Evidence Shows
Semaglutide and Heart Health: The SELECT Trial, Explained
Compounded Medicine Compounded vs. Brand-Name GLP-1s: What's Actually Different
GLP-1 GLP-1 Dosing and Titration: Why You Start Low
Tirzepatide Tirzepatide for Sleep Apnea: The SURMOUNT-OSA Results
GLP-1 Who Is (and Isn't) a Candidate for GLP-1 Medications
Semaglutide Oral vs. Injectable Semaglutide: How They Compare
The Telehealth Economy How the GLP-1 Telehealth Boom Happened
The Telehealth Economy Getting a GLP-1 Prescription Online: What to Know
The Telehealth Economy The End of the GLP-1 Shortage — and What It Means
Longevity Rapamycin and Longevity: What the Human Evidence Shows
Longevity NAD+ Boosters and Aging: What the Science Actually Says
Longevity Biological Age Tests: What Epigenetic Clocks Can and Can't Tell You
Peptides What 'Peptide Therapy' Actually Means
Peptides PT-141 (Bremelanotide): What the Evidence Shows
Peptides BPC-157: What the Human Evidence Actually Shows
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The science, explained without the jargon.
GLP-1
A gut hormone that regulates appetite, insulin, and gastric emptying. The basis of semaglutide and tirzepatide.
Incretin
Any hormone released after eating that increases insulin secretion. GLP-1 and GIP are the two that matter most.
Compounded medication
A drug custom-mixed by a pharmacy from raw ingredients, legal only under specific FDA conditions.
Senolytic
A drug that selectively kills senescent (“zombie”) cells thought to drive age-related decline.
Mitochondrial biogenesis
The process by which cells build new mitochondria — the engine behind endurance and metabolic health.
HRV
Heart-rate variability. The beat-to-beat variation in your pulse. A proxy for nervous-system balance and recovery.