Cancer Scare. A True Story.
Happy Thursday, Zapien 👋
This week, we go deep with longevity physician Johan Hedevåg as he shares his raw, personal journey through circulating tumor cells and radical cancer screening — a moment when the one with answers is left with questions.
Our WhatsApp community dove into supplement storage, smart fiber habits, testing tools, and astaxanthin — another week of merging science with daily health choices.
And now, those daily questions, tips, and deep dives don’t have to stay in WhatsApp. Our community forum is now live on the website — join the conversation, share what’s working for you, and explore threads that go far beyond WhatsApp chats.
Plus, explore how Ori Raz — former pro swimmer, lifelong athlete, and entrepreneur — stays fit and focused through structured habits and tech-powered recovery.
Forever,
Karol, Martin, Simon & Andy
This Week’s Highlights
➤ When the Doctor Becomes the Patient
Longevity expert Johan Hedevåg shares a raw, inside look into circulating tumor cells, radical cancer screening, and what happens when the doctor becomes the patient.
➤ Explore the New Community Forum
More insights, more exchange, more clarity. The conversation continues on our website.
➤ Weekly summary of our WhatsApp Group
Highlights of discussions on supplement storage, fiber intake, biohacking tools, and at-home testing
➤ Health Stack of the week
Peek inside Ori Raz’s health stack — how an ex-pro swimmer and entrepreneur stays sharp through structure, smart tech, and recovery.
Popular Discussions
When the Doctor Becomes the Patient — A personal story about circulating tumor cells, radical cancer screening and learning to live with uncertainty.
I’m about to do something I’ve never done in writing before. Share something deeply personal.
What you are about to read is my experience with aggressive cancer screening. My rational strategies. My emotional roller coaster ride. My story.
But first a bit of background.
Hi there.
You might not know me yet. My name is Johan Hedevåg. I’m a longevity physician and health tech entrepreneur based in Stockholm, where I run Revi Health. Our clinic focuses on stemcells, metabolic & hormonal health and the art of longevity. Why is this relevant?
WhatsApp Group Summary
Health Supplements and Storage Tips
Jill raised concerns about storing supplements during a Berlin heatwave. Sandra suggested using a cellar instead of a fridge to avoid humidity issues.
Ana Lorena provided insights on ideal storage temperatures: 15°C to 25°C for most supplements and highlighted that some, like omega oils, need refrigeration.
Sandra recommended cellar storage as a practical, humidity-free alternative.
Outcome: Use sealed containers with silica packs or move to cooler rooms instead of fridges for most supplements.
Integrating Technology in Health Practices
Liam asked about integrating tech in clinics. Sandra pointed him to Julian Kley from Avi Medical, and Oushesh offered a connection to Vlad Lata via LinkedIn.
Andy highlighted tools like Siphox Health and Heads Up Health for home diagnostics.
Outcome: Clear networking leads and two solid options for integrating diagnostics into practice.
Dietary Insights and Fiber Intake
Jonas emphasized that modern humans consume only ~20% of the fiber early humans did, pointing to correlations with disease. He shared routines involving psyllium husks, seeds, and berries.
He warned against relying on single supplements, pushing instead for a diverse, whole-food-based approach.
Outcome: Modern diets are fiber-deficient; sustained health benefits require comprehensive dietary changes.
Preventive Health Testing in Berlin
Ori compared lactate threshold testing options between SMS and Charité. Heiko noted Charité’s rigid all-or-nothing packages, while Noah praised their sport medicine clinic for its value (€150 incl. VO2 max and bloodwork).
Sandra was surprised they offered any preventive access at all.
Outcome: SMS appears more flexible; Charité offers value if you’re okay with the full diagnostic package and some bureaucracy.
Astaxanthin and Health Discussions
David asked for personal experiences. Heiko reported no visible effects after 10+ years of use. Jonas stressed skepticism toward miracle claims and emphasized context.
Humorously, some compared it to spirulina hype.
Outcome: Astaxanthin may have marginal benefits but likely doesn’t deliver dramatic results on its own.
Community Health Stack
Ori Raz
Entrepreneur / Product Manager | Healthspan & Longevity Advocate | Former Pro Swimmer | Lifelong Athlete
Member Stats
• Level 1
• 700 Points
• 14 Reviews
Ori’s Trusted Brands
Ori's Health Routine
Routine:
• Wake-up: Around 7:00 AM • Morning Sunlight Exposure: 2–10 minutes of direct light within 30 minutes of waking. Combined with light recovery movement such as: walking (including backward walking), light running, skipping/striding, or mobility work.
• Meditation: ~15 minutes using the Waking Up app
• First Meal: ~1 hour after waking
• Caffeine: Delayed; ~1 hour after breakfast. and none later than 12:00 PM
• Afternoon Pre-Workout Booster (if needed): Beetroot powder to support performance before training
• Dinner: Around 18:00, ideally no later than 3 hours before bedtime
• Wind-down: 9:30 PM – dim lights, no screens
• Sleep: ~10:30 PM in a cool, dark, and quiet room
Training:
• Weekly training plan and load adapts to condition, fatigue, and overall progression. I track using Intervals.icu and plan/reflect in Notion.
• A typical training week includes:
Discover more: Training, Nutrition, Microbiome Nutrition, Sleep Hygiene, Tracking…
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