The Longevity Guide
Evidence-based answers to your most important questions about living longer and healthier
Explore our in-depth guides covering the science of aging, biological age, supplements, diet, exercise, and more.
What is Longevity?
Understand healthspan, lifespan, and why living longer actually matters
Biological vs Chronological Age
Why your biological age matters more than your birthday
How to Slow Aging Naturally
Evidence-based lifestyle interventions that actually work
Longevity Supplements
What the science really says about NMN, Vitamin D, Omega-3, and more.
Blue Zones
Secrets from the world's longest-living populations
Intermittent Fasting
Benefits, risks, and how to start safely
Epigenetic Age Tests
Are biological age tests worth it? What the science says
Exercise for Longevity
The best types and amounts of exercise for a longer life.
Sleep and Longevity
Good sleep is one of the strongest things you can do for healthy aging. Here is why.
The Longevity Diet
What centenarians eat and what science recommends
Longevity for Women
Women's healthspan, hormonal aging, and evidence-based strategies
Sauna and Longevity
What Finnish cohort research shows about sauna frequency, cardiovascular health, and lifespan
GLP-1 and Longevity
Semaglutide, tirzepatide, and the longevity question. Here is what the evidence actually shows.
NMN in Germany & the EU
Where NMN stands under EU Novel Food rules. What's sold, what isn't, and what it means for you.
Bryan Johnson & Blueprint (DACH Perspective)
What the Blueprint protocol contains, what the evidence says, and what's realistic for people in German-speaking countries
Huberman Protocols (DACH Perspective)
Andrew Huberman's most-discussed protocols (light, sleep, cold, NSDR, training), with evidence check and DACH-context notes.
Peter Attia & Outlive (DACH Perspective)
The Four Horsemen, Medicine 3.0, and the Centenarian Decathlon. Attia's framework explained for a DACH audience.
HRV and Longevity Wearables
Heart rate variability with Whoop, Oura, Garmin, Polar. How to measure, compare, and actually act on your HRV data.
Cold Exposure and Longevity
Ice bath, cold plunge, cold shower. What research shows about cold exposure, brown fat, and healthspan.
Rapamycin and Longevity in Germany
The mTOR hypothesis, the animal and early human data, and where rapamycin stands legally for off-label longevity use in Germany.
Heilpraktiker and Longevity
What German Heilpraktiker can and cannot offer in a longevity context. The legal framework and how it differs from physicians.
Self-Pay Longevity in Germany
Which longevity services German statutory insurance covers, which you self-pay, typical prices, and whether private insurance is worth it
Biological Age Tests and German Health Insurance
Are biological age tests covered by Krankenkasse? What GKV and PKV pay for, IGeL pricing, and how to choose self-pay test providers
Peptides: An Honest Guide
What peptides are, how the field got from insulin to Ozempic, the IGF-1 paradox, the real risks, and the legal status in Germany, Austria, and Switzerland.
Spermidine and Longevity
An autophagy molecule out of Austrian research. What the SmartAge trial found, and what's actually in food versus supplements.
Longevity for Men 40+
Hormones, heart markers, strength, and mental health in midlife. Testosterone, ApoB, sarcopenia, and the honest truth about alcohol and sleep.
Perimenopause: The Decade That Shapes Your Healthspan
STRAW+10 staging, what your symptoms really mean, what HRT guidelines say in 2026, and which check-ups are worth your time.
CGM for Non-Diabetics
What continuous glucose monitors actually measure, what healthy-person data shows, hype vs. evidence, and DACH availability
ApoB and Lp(a): The Cardio Markers Your Doctor Might Not Order
Why ApoB now beats LDL-C, why Lp(a) is a genetic risk marker you inherit, and how to actually get tested in DE, AT, and CH.
Mitochondria and Longevity
What mitochondria really do, why they slip with age, and which supplements have evidence behind them.
Deep Sleep (Slow-Wave Sleep)
The slice of sleep that matters most for aging. What raises it, and what the supplement evidence really says.
CoQ10: Ubiquinol vs Ubiquinone
The 2 to 3x bioavailability claim is largely Kaneka-funded. Here is what the independent evidence actually shows.
Zone 2 Training & VO₂max
Fitness is the strongest mortality predictor we can measure. Here is how to actually train it in DACH.
Autophagy (Autophagie)
What autophagy actually is, when fasting really triggers it in humans, and which protocols have human evidence. Not just mouse hype.
HRT & TRT: Protocols and Honest Evidence
What the WHI re-analysis actually flipped. What the T-Trials and TRAVERSE 2023 showed. And how HRT and TRT are really prescribed in DACH.
Creatine for Women
Strength, brain, and the menopause transition. What the RCTs really show for women, plus honest myth-busting on kidneys and bloating.
Fibermaxxing
Pushing fiber to 30 to 50 g a day. What the RCTs really show for heart, gut and blood sugar, and how to ramp up without the bloating.
Interval Walking & Rucking
Two free methods that beat a normal stroll. The 3-3 Japanese interval protocol and weighted-pack rucking, honestly reviewed.
CAC Score (Coronary Calcium)
The heart test that measures the disease, not the risk. The power of a zero, when a high score changes your statin decision, and DACH costs.
Whole-Body MRI Screening
Prenuvo and Neko are coming to Europe. The honest case: no mortality trial, a 95% incidental-finding rate, and the one niche it fits.
Berberine (Nature's Ozempic?)
It is not Ozempic. Berberine works like metformin, with modest glucose and lipid effects, a tiny weight effect, and real drug interactions.
Magnesium Forms Compared
Glycinate, citrate, threonate, oxide. Match the form to your goal, not the marketing. What the RCTs really show for sleep, cramps and more.
GLP-1 & Muscle Preservation
A big slice of Ozempic/Mounjaro weight loss is lean mass. How resistance training and protein protect your strength, and what the trials show.
Longevity Blood Test: The Biomarker Guide
The 8 blood markers that actually track healthspan, and why normal is not the same as optimal. From HOMA-IR to vitamin D, honest and no commission.
Weight-Loss Injections 2026
What Wegovy, Mounjaro and Ozempic cost in Germany, why insurance does not pay, how strongly they work, and who they are actually for.
Menopause Symptoms: The Complete Hub
Hot flushes, weight, brain fog, joints, sleep and skin. What is really behind the symptoms and what actually helps, honestly framed.
Raise Testosterone Naturally
What actually moves testosterone instead of the supplement myths, how to test properly, and what TRT costs in Germany when it is indicated.
Stop Skin Aging
Sugar, collagen, sun protection and menopause. What keeps skin visibly younger, based on what the dermatology evidence actually shows.
Blood Sugar Guide
Which glucose hacks hold up for non-diabetics. Apple cider vinegar, meal order, post-meal walks, and how to spot insulin resistance early.
Sleepmaxxing
Melatonin, mouth taping, light and timing. What actually improves sleep and what is just hype, with no gadgets to sell.
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