Podcast
Revi Talks
Conversations on living longer, healthier lives. Revi Talks is Revi Health's podcast on regenerative medicine, hormonal health, metabolic health and longevity. We speak with leading clinicians, researchers and patients about what actually works.

Dr. Johan Hedevåg
Licensed Physician

Markus Mattiasson
Head of Research & Innovation
All episodes
Cold plunge after strength training: a bad idea?
Cold plunges, sauna, fasting, red light and exercise: what do they actually do to the cell's power plants, the mitochondria? Johan Hedevåg (medical director and CEO, Revi Health) and Markus Mattiasson (head of research and innovation) continue from last week, this time from inside the clinic's sauna.
The cell's power plant and slaughterhouse? What mitochondria really do
Can an AI be alive? Are viruses life? And is the mitochondrion really more than the cell's power plant?
Visceral fat: the fat you can't see
What does your body composition say about your health? Johan and Markus go through what a DEXA scan shows about fat, muscle and bone, and why weight alone is not enough.
Do you have to choose between muscle and a long life?
Do you have to choose between being strong and living long? We take on one of the most debated questions in longevity: is growth good or bad as we get older?
Biological age – how do you actually measure it?
What does it mean when a test says your biological age is a certain number, and why can the same person get results anywhere between 20 and 80?
Our Swedish Hot Ones – six levels of hot sauce and six questions
Our own Swedish take on Hot Ones – with spicy chicken instead of wings. Johan, Markus and Emelie work through six increasingly hot levels, answering one question per level: philosophy, politics, health trends and the single health tip they would give their patients.
Markus, Johan or Trashcan – our personal supplement stack
Markus and Johan open their own supplement cabinets and sort more than 60 supplements, one at a time, into three piles: Markus, Johan or Trashcan. Honest answers on what they take, what they quit and why.
Revi ranking: we grade 40+ supplements from S to F
Johan and Markus run a full Revi ranking of supplements — every supplement gets a grade from S (best) to F (worst), with no E tier. More than 40 supplements go under the microscope.
Matt Kaeberlein on Peptide Hype, the NAD Myth, and Why "Health Span" Is So Hard to Measure
Aging and longevity researcher Matt Kaeberlein doesn't hold back on what the longevity field gets wrong: peptide hype, the NAD myth, and why health span may be far harder to measure than it sounds.
The peptides promising more energy – from hype to FDA approval
A mitochondrial peptide is now FDA-approved — and suddenly half the biohacking world wants it off-label. We unpack what these peptides actually do, how far the evidence reaches, and where promising hypothesis ends and proven effect begins.
Q&A: 30+ questions on longevity, healthspan and aging
A pure Q&A round: we answer 30+ questions on longevity, healthspan and the biology of aging — from hearing checks and shingles vaccines to creatine, GLP-1, TRT, rapamycin and senolytics.
Tier list: diagnostic tools and screening tests
A tier list of diagnostic tools — from blood work and DEXA to whole-body MRI, liquid biopsy and CGM. What gives signal, what's noise, and when does a test actually change what you do about your health?
Immunomodulating peptides: hype, substance and the future of medicine
Markus and Johan on immunomodulating peptides — Thymosin Alpha-1, KPV, LL-37 and VIP. What does the evidence say, where does the FDA draw the line, and what's substance versus hype in the longevity field?
20 years of elite sport — motivation or obsession?
What does 20 years at the elite level really take? We explore the line between healthy drive and unhealthy obsession — and what it does to the body, hormones and recovery over time.
Training, sleep, blood work and supplements — we answer your questions
What actually matters? We answer your questions on training, sleep, blood work and supplements — separating what's backed by evidence from what's just noise.
Sick of lipids!
We're sick of lipids. Or rather, sick of the endless lipid debate.
Can peptides heal the body?
We unpack what peptides actually are, how they're used in regenerative medicine, and what the evidence says about healing tissue, joints and tendons.
Should you take peptides for weight loss?
GLP-1, tirzepatide and other peptides for weight loss — what works, what are the risks, and how do we think about muscle mass and long-term health?
Should you take peptides?
The premiere of Revi Talks. A thorough introduction to peptides: what they are, what they do in the body, and when they may be warranted.


















