Contents
- Ray Kurzweil — Engineer the Biology
- Tim Ferriss — The N=1 Experimenter
- Peter Attia — Prevent Disease Before It Arrives
- Andrew Huberman — Control the Inputs
- David Sinclair — Activate the Longevity Pathways
- Bryan Johnson — Measure Everything
- Where They Agree
- Where They Disagree
- Cost Comparison
1. Ray Kurzweil — Engineer the Biology
Profile: engineer-driven, intervention-heavy longevity.
Core philosophy: survive long enough to benefit from future biotechnology. Kurzweil describes current diet, supplements and medical interventions as a bridge toward increasingly powerful future technologies. His approach treats human biology almost as another information system that can be measured, modified and repeatedly optimized.
| Category | Intensity | Kurzweil approach |
|---|---|---|
| Check-ups | Very high | Frequent biochemical measurement and individualized testing |
| Off-the-shelf tools | High | Nutrition, supplements and increasingly advanced interventions |
| Monitoring | Very high | Long history of tracking dozens of biochemical variables |
| Supplements | Extremely high | Approximately 80 pills per day reported in 2024 |
Philosophy
Kurzweil is perhaps the purest engineer among the six profiles. His objective is not simply to reduce cardiovascular risk or remain physically capable in old age. It is to remain alive and functional until what he calls longevity escape velocity: the point at which medical progress adds life expectancy faster than biological ageing removes it.
Check-ups
Kurzweil has historically described monitoring roughly 50–60 blood parameters every few months and adjusting his intervention program accordingly.
His older published protocol included detailed attention to cholesterol, inflammation, glucose metabolism, homocysteine and other biochemical markers. The precise modern laboratory panel is not publicly documented in the same detail.
Off-the-shelf tools
His original framework relied heavily on nutrition, aggressive supplementation and individualized preventive medicine. More recent interviews indicate that injections and peptides have also entered his routine.
This places Kurzweil far beyond normal consumer wellness and into a hybrid of supplements and medically supervised intervention.
Monitoring tools
Kurzweil was practicing quantified-self medicine before modern wearables made it fashionable. His emphasis has traditionally been less on sleep scores and readiness scores and more on biochemical measurements.
He has also historically used biological-age-style functional testing, although the validity of such scores should not be confused with proven lifespan extension.
Supplements
Kurzweil once took roughly 250 pills per day. He later reduced the number substantially as formulations became more concentrated, and in a 2024 interview said he was taking about 80 pills per day.
The important Guidefinances point is not the precise number. It is that Kurzweil remains an outlier even within longevity culture in his willingness to use a large intervention stack.
Key other routines
- Historically low-glycaemic nutrition.
- Strong emphasis on metabolic and cardiovascular risk.
- Exercise as part of the broader longevity program.
- Active interest in emerging biotechnology.
- High willingness to use interventions well beyond conventional prevention.
Cost of the Kurzweil approach
Published historical figure: Kurzweil previously described his supplement regime as costing “a few thousand dollars a year.”
Guidefinances 2026 estimate: a modern attempt to reproduce an 80-pill-per-day program plus frequent laboratory monitoring, peptides or injections could readily exceed $5,000–15,000 per year, before specialist physician care or advanced diagnostics.
Sources:
2024 Kurzweil interview;
Kurzweil Library health interview.
2. Tim Ferriss — The N=1 Experimenter
Profile: experimentation-first, pragmatic biohacking.
Core philosophy: test interventions personally, measure the outcome, keep what works and discard what does not.
| Category | Intensity | Ferriss approach |
|---|---|---|
| Check-ups | High | Repeat abnormal tests before acting; metabolic and cardiovascular focus |
| Off-the-shelf tools | Very high | BFR, sauna, exercise tools, recovery devices, ketones |
| Monitoring | High | Wearables and metabolic measurements used experimentally |
| Supplements | High | Large but changing experimental stack |
Philosophy
Ferriss is less interested in maintaining one permanent longevity doctrine than in running experiments.
His characteristic contribution is the N=1 mentality: establish a baseline, change one variable, measure the outcome and retain interventions that produce meaningful results.
Check-ups
Ferriss has become increasingly focused on cardiovascular and metabolic biomarkers as he has aged.
His discussions include:
- lipids and cardiovascular-risk markers;
- fasting insulin;
- HbA1c;
- hs-CRP;
- oral glucose-tolerance testing with insulin measurements;
- genetic risk;
- age-appropriate cancer screening.
Off-the-shelf tools
This is Ferriss’s natural territory.
His recent discussions have included blood-flow-restriction training, electrical-stimulation devices, sauna and hot-water exposure, ketone supplements, grip and balance tools and various recovery devices.
Ferriss is willing to experiment with expensive tools but generally asks whether the intervention creates a noticeable functional benefit.
Monitoring tools
Ferriss regularly investigates wearables rather than committing ideologically to one ecosystem. Recent discussions have included WHOOP, Oura, Garmin, Apple Watch and newer health-tracking devices.
He has also used or discussed continuous glucose monitoring, glucose/ketone measurement and physiological testing.
Supplements
Ferriss published a particularly detailed snapshot of his current supplement experimentation in September 2025. Items discussed included:
- alpha-lipoic acid;
- green-tea extract;
- garlic/allicin;
- NAC;
- fish oil;
- magnesium L-threonate;
- collagen plus vitamin C;
- maca;
- whey protein;
- MCT oil;
- ketone esters or salts.
Key other routines
- Strength training.
- Increasing emphasis on Zone 2 and VO2-max training.
- Sauna/heat exposure.
- Intermittent fasting or ketogenic periods when useful.
- Meditation and psychological practices.
- Strong interest in maintaining cognition and mobility.
Cost of the Ferriss approach
No reliable published annual total exists.
Guidefinances estimate: reproducing his visible supplement stack, several wearables, periodic laboratory tests and selected recovery/training equipment could cost approximately $3,000–10,000 per year.
Buying every experimental device discussed on the podcast would cost considerably more.
Sources:
Ferriss 2025 supplement Q&A;
Ferriss 2026 health discussion;
Ferriss health gadgets discussion.
3. Peter Attia — Prevent Disease Before It Arrives
Profile: physician-led, evidence-oriented preventive longevity.
Core philosophy: detect chronic-disease risk early, preserve physical capacity aggressively, and use an intervention only when the problem and desired outcome are clear.
| Category | Intensity | Attia approach |
|---|---|---|
| Check-ups | Very high | Early cardiovascular, metabolic and cancer-risk assessment |
| Off-the-shelf tools | Moderate | Mostly exercise and performance tools |
| Monitoring | High but selective | Use data only when accurate and actionable |
| Supplements | Low–moderate | Increasingly skeptical and problem-specific |
Philosophy
Attia’s Medicine 3.0 philosophy shifts attention from treating established disease to reducing risk decades earlier.
His 2026 supplement framework captures the philosophy particularly well: define the problem before choosing the molecule.
Check-ups
Attia’s prevention model places substantial emphasis on:
- ApoB;
- Lp(a);
- blood pressure;
- glucose and insulin regulation;
- body composition;
- DEXA;
- appropriate cancer screening;
- family history and genetics;
- selected cardiovascular imaging.
His testing philosophy is considerably more proactive than an ordinary European annual physical check-up.
Off-the-shelf tools
Attia is not especially gadget-driven. Equipment earns a place primarily when it supports exercise: bicycles, treadmills, rowing machines, weights and tools that improve strength, aerobic conditioning or stability.
Monitoring tools
Attia has discussed sleep wearables and CGM experimentation, but he repeatedly returns to the question of whether the information changes behavior.
VO2 max, strength, heart rate, blood pressure and longitudinal laboratory values matter more in his framework than accumulating dozens of consumer “readiness” scores.
Supplements
Attia is increasingly conservative about supplement stacks.
His recent framework is generally positive or conditionally positive toward:
- creatine for muscular performance;
- fish oil when there is a defined objective;
- vitamin D when status indicates need;
- selected nutrients when deficiency or risk justifies them.
He is notably skeptical about NAD boosters such as NMN/NR as established longevity interventions and about poorly regulated biohacking peptides.
Key other routines
- Strength training.
- Zone 2 aerobic work.
- High-intensity VO2-max training.
- Stability and injury prevention.
- Sleep.
- Emotional and psychological health.
- Adequate dietary protein and metabolic health.
Cost of the Attia approach
Guidefinances estimate:
- Foundation only: roughly $500–2,000/year for training, basic equipment and selected testing.
- Serious private preventive version: approximately $5,000–20,000+ annually once comprehensive laboratories, DEXA, selected imaging and specialist oversight are included.
This estimates the cost of replicating the philosophy, not Attia’s personal expenditure or the cost of becoming a patient in his practice.
Sources:
Attia AMA 85 — medications and supplements;
Attia 2026 longevity optimization AMA;
Attia DEXA, prevention and wearables.
4. Andrew Huberman — Control the Inputs
Profile: neuroscience-led behavioral optimization.
Core philosophy: manipulate powerful biological inputs — light, sleep timing, movement, temperature, breathing and nutrition — before relying on supplements.
| Category | Intensity | Huberman approach |
|---|---|---|
| Check-ups | Moderate | Important metabolic and hormonal markers, but less diagnostic-heavy than Attia |
| Off-the-shelf tools | High | Light, exercise, temperature, breathing and sleep tools |
| Monitoring | Moderate | Useful but not necessary for many protocols |
| Supplements | Moderate–high | Goal-specific, preferably single-ingredient products |
Philosophy
Huberman’s most transferable idea is that some of the strongest biological interventions are free.
Morning light, darkness at night, regular sleep, exercise, breathing and behavioral timing come before supplementation in his official framework.
Check-ups
Huberman Lab discussions have emphasized routine metabolic markers such as:
- fasting glucose;
- HbA1c;
- fasting triglycerides;
- HDL and total cholesterol;
- other lipid markers where appropriate;
- hormonal testing when symptoms or objectives justify it.
He is less associated with aggressive imaging or comprehensive preventive diagnostics than Attia or Johnson.
Off-the-shelf tools
Huberman’s toolkit is broad but can be inexpensive:
- outdoor morning sunlight;
- bright-light devices when sunlight is unavailable;
- exercise equipment;
- cold shower or cold-water immersion;
- sauna or heat exposure;
- blackout blinds or eye masks;
- NSDR and breathing protocols.
Most of these do not require a premium product.
Monitoring tools
Heart-rate monitoring can be useful for exercise but is not mandatory: the “talk test” can identify Zone 2 surprisingly well.
Huberman discusses wearables and health technologies, but the central protocols do not require constant measurement.
Supplements
Huberman’s general hierarchy is:
- behavior;
- nutrition;
- then supplements targeted toward a specific objective.
Frequently discussed compounds include:
- creatine;
- magnesium;
- L-theanine;
- apigenin;
- vitamin D where appropriate;
- omega-3 fatty acids;
- various performance or focus supplements depending on the objective.
His official supplement material recommends introducing single ingredients individually when possible so effects can be evaluated.
Huberman Lab also has commercial relationships with supplement companies, which should be kept separate from the strength of scientific evidence for any particular product.
Key other routines
- Morning outdoor light.
- Consistent wake/sleep timing.
- Resistance training.
- Zone 2 cardio and higher-intensity exercise.
- NSDR.
- Breathing practices.
- Managing evening light.
- Temperature exposure.
Cost of the Huberman approach
The core Huberman protocol can cost almost nothing. Sunlight, exercise, regular sleep and breathing do not require subscriptions.
Guidefinances estimate:
- Minimalist version: $0–500/year.
- Supplements + gym + basic tracking: roughly $1,000–3,000/year.
- Home sauna/cold-plunge/device-heavy interpretation: several thousand dollars more, mostly as one-off purchases.
Sources:
Huberman Lab Daily Blueprint;
Huberman Lab supplementation framework;
Huberman Lab sleep resources.
5. David Sinclair — Activate the Longevity Pathways
Profile: molecular-biology-led longevity.
Core philosophy: aging is biologically modifiable; activate cellular stress-response pathways through dietary adversity, exercise and potentially pharmacological or nutritional “adversity mimetics.”
| Category | Intensity | Sinclair approach |
|---|---|---|
| Check-ups | High | Blood biomarkers and biological-age measurement |
| Off-the-shelf tools | High | Fasting, heat/cold, exercise and tracking |
| Monitoring | High | Wearables, blood tests and biological-age technologies |
| Supplements | High | NAD/sirtuin-oriented intervention tradition |
Philosophy
Sinclair differs fundamentally from Attia.
Attia starts with diseases we know how to prevent. Sinclair starts with the biology of aging itself.
His current Lifespan platform continues to argue that aging biology can eventually be directly manipulated, with cellular reprogramming representing the most ambitious end of that thesis.
Check-ups
Sinclair has long supported measuring metabolic and cardiovascular biomarkers rather than relying on symptoms.
He has also been closely associated with biological-age testing and personalized biomarker platforms.
For transparency, Sinclair has disclosed commercial relationships with numerous longevity companies. His Harvard affiliations page lists roles or investments involving organizations including InsideTracker and companies developing NAD-related technology.
Off-the-shelf tools
Sinclair’s lifestyle framework emphasizes creating manageable biological adversity:
- exercise;
- eating less often;
- periodic fasting;
- heat;
- cold;
- avoiding constant nutrient abundance.
His 2026 Lifespan material continues to describe eating less frequently as one of his highest-priority longevity strategies.
Monitoring tools
Sinclair has advocated using blood tests, wearable sensors and biological-age measurements as a “dashboard” for the body.
InsideTracker, whose scientific advisory board has been chaired by Sinclair, currently integrates blood biomarkers with wearable data including Oura, Apple Watch, Garmin and Fitbit.
This should be viewed separately from the still-developing question of how reliably commercial biological-age tests measure meaningful changes in individual longevity.
Supplements
Sinclair’s historically documented personal stack has included:
- NMN;
- resveratrol;
- vitamin D;
- vitamin K2;
- metformin;
- and discussion of compounds such as spermidine, fisetin and berberine.
Important editorial qualification: his complete current 2026 personal supplement list has not been published with the same clarity as some earlier protocols. Older dose lists should therefore not automatically be labelled “Sinclair’s 2026 stack.”
Metformin is a prescription medicine, and using it in a healthy person for longevity remains fundamentally different from correcting a vitamin deficiency.
Key other routines
- Reduced meal frequency.
- Exercise.
- Heat and cold stress.
- Plant-heavy nutrition.
- Reduced sugar and refined-food exposure.
- Interest in maintaining NAD and sirtuin pathways.
Cost of the Sinclair approach
No reliable current personal total is published. InsideTracker currently prices one comprehensive blood-test membership at around $489 and four annual tests at around $1,305 in the US.
Guidefinances estimate: recreating the historically disclosed supplement approach plus repeated biomarker monitoring might cost approximately $2,000–6,000 per year, excluding prescriptions, physician care or experimental interventions.
Sources:
Lifespan 2026;
Sinclair 2026 fasting episode;
Sinclair disclosed affiliations;
InsideTracker current pricing.
6. Bryan Johnson — Measure Everything
Profile: extreme quantified-self longevity.
Core philosophy: remove human inconsistency from health decisions and let measurement determine the protocol.
| Category | Intensity | Johnson approach |
|---|---|---|
| Check-ups | Extreme | Repeated blood testing, imaging and multi-organ assessment |
| Off-the-shelf tools | Extreme | Light therapy, red light, sauna and numerous dedicated products |
| Monitoring | Extreme | Continuous and repeated measurement is central |
| Supplements | Very high | Large standardized stack, increasingly commercialized through Blueprint |
Philosophy
Johnson takes the quantified-self concept further than almost anyone.
The stated objective of Blueprint is to allow measurements and predefined systems to make health decisions instead of moment-to-moment preference.
Interestingly, his 2026 public protocol has become somewhat simpler than the earliest version of Blueprint.
Check-ups
Johnson’s January 2026 protocol lists:
- blood testing every 3–6 months;
- annual full-body MRI for selected people over 40 or with relevant risk;
- annual mole checks;
- dental review every six months;
- annual eye examinations;
- glucose monitoring;
- extensive body-composition and physiological measurements.
Blueprint also now sells a consumer biomarker service providing more than 160 measurements annually for $365 per year.
Off-the-shelf tools
Johnson’s current routine includes or discusses:
- 10,000-lux morning light;
- red-light therapy;
- sauna;
- air-quality monitoring;
- water quality;
- exercise equipment;
- skin and hair systems;
- extensive oral-care tools.
His more advanced experiments have included interventions such as hyperbaric oxygen, stem-cell procedures, gene therapy and prescription treatments. These should not be confused with ordinary consumer wellness.
Monitoring tools
Measurement is the heart of the Johnson model.
His morning routine includes measurement of variables such as:
- weight;
- fat mass;
- muscle;
- hydration;
- arterial stiffness.
Sleep, heart rate, glucose and numerous laboratory biomarkers are followed longitudinally.
Supplements
The current protocol includes a broad stack incorporating compounds such as:
- creatine;
- omega-3;
- vitamins and minerals;
- glycine;
- taurine;
- CoQ10;
- ashwagandha and rhodiola;
- NR or NMN;
- collagen;
- additional antioxidant and micronutrient formulations.
Many of these are now sold by Johnson’s own Blueprint company. Commercial involvement should therefore be stated whenever the personal protocol is used to evaluate the product range.
Key other routines
- Sleep is his highest daily priority.
- Bed around 20:30.
- Wake around 05:00.
- Final meal extremely early, around noon in his current routine.
- Approximately six hours of exercise per week.
- Strength, Zone 2, vigorous cardio, balance and mobility.
- Minimal junk food and alcohol.
- Highly standardized daily schedule.
Cost of the Johnson approach
This requires two different numbers.
Published consumer entry cost:
- Blueprint Easy Stack: approximately $98/month = $1,176/year.
- Blueprint biomarker program: $365/year.
- Combined basic commercial stack + biomarker testing: approximately $1,541/year, before food and additional products.
Guidefinances estimate for a more complete consumerized Blueprint: approximately $3,000–10,000 per year once additional supplements, premium foods, wearables and routine diagnostics are included.
Bryan Johnson’s personal extreme protocol: vastly more expensive. Johnson states that millions of dollars have been spent developing and testing Blueprint over several years. His current full annual personal cost is not transparently published, and advanced medical procedures can push the cost far beyond the consumer program.
Sources:
Bryan Johnson 2026 protocol;
Blueprint biomarker program;
Blueprint Easy Stack.
Where Do They Agree?
Despite the enormous differences in presentation, cost and appetite for experimentation, the surprising result of comparing the six profiles is that their strongest areas of agreement are remarkably conventional.
| Practice | Approximate agreement | Interpretation |
|---|---|---|
| Regular exercise | 6/6 — 100% | The clearest consensus of the entire group |
| Cardiometabolic prevention and measurement | 6/6 — 100% | Blood pressure, glucose, lipids and related markers matter more than exotic biological-age scores |
| Sleep / circadian health | 5/6+ — approximately 83% | Especially strong for Attia, Huberman, Ferriss, Sinclair and Johnson |
| Diet quality / avoiding metabolic excess | 6/6 — 100% | Specific diets differ, but nobody argues that ultra-processed excess is a longevity strategy |
| Strength preservation | 5/6+ — approximately 83% | Increasingly central as these figures and their audiences age |
| Aerobic fitness | 5/6+ — approximately 83% | Zone 2 and/or VO2-max work appears across most modern protocols |
| Some form of repeated biomarker testing | 5–6/6 — 83–100% | The intensity differs enormously, but longitudinal measurement is broadly accepted |
Supplement consensus: much weaker
There is no supplement remotely comparable to exercise in terms of agreement.
Nevertheless, several compounds reach approximately the requested 60–80% range if we count people who either use them or discuss them positively/conditionally rather than requiring confirmed daily personal use.
| Supplement | Approximate support/use | Important qualification |
|---|---|---|
| Creatine | At least 4/6 — ~67% | Attia, Huberman, Ferriss and Johnson are clearly positive or active users |
| Omega-3 / fish oil | At least 4/6 — ~67% | Support is often conditional on diet, status and objective |
| Vitamin D | At least 4/6 — ~67% | Attia’s framework is explicitly status/deficiency dependent |
| Magnesium | Approximately 3–4/6 | Popular particularly in sleep/recovery protocols, but not universal |
The consensus supplement stack is therefore surprisingly small.
If we required strong human-outcome evidence rather than influencer agreement, it would become smaller again.
Where Do Their Opinions Diverge?
1. NMN / NR and NAD boosting
Sinclair: historically one of the strongest advocates and personal users of NMN.
Johnson: currently includes NR or NMN in his personal protocol.
Attia: substantially more skeptical that available evidence justifies treating NAD boosters as established longevity interventions.
2. Number of supplements
The spectrum could hardly be wider:
Kurzweil → Johnson → Sinclair → Ferriss → Huberman → Attia
roughly describes the transition from intervention-heavy toward more selective supplementation.
3. Biological-age testing
Kurzweil, Sinclair and Johnson are relatively enthusiastic about quantified biological-age concepts.
Attia has been much more skeptical about whether current aging clocks can tell an individual that an intervention is genuinely making them age more slowly.
Ferriss and Huberman generally occupy the middle.
4. Fasting
Sinclair: very strong advocate of eating less often.
Johnson: very long daily fasting window generated by an unusually early final meal.
Ferriss: extensive personal experimentation with intermittent and longer fasting.
Huberman: views timing as a useful tool but generally within a broader sleep/metabolic framework.
Attia: has become less enthusiastic about fasting as a unique longevity intervention, particularly when it interferes with adequate protein and maintenance of lean mass.
5. Experimental treatments
Johnson and Kurzweil are much more willing to cross into peptides, injections or emerging interventions.
Sinclair is scientifically focused on interventions that could eventually modify aging biology itself.
Attia is increasingly explicit that mechanistic plausibility is insufficient and that the burden of evidence rises with the risk of the intervention.
What Does It Cost to Copy Them?
| Profile | Approximate annual consumer cost | Main cost driver | Guidefinances value view |
|---|---|---|---|
| Huberman | $0–3,000 | Supplements, gym, optional tracking | Highest potential value because many core interventions are free |
| Ferriss | $3,000–10,000 | Supplements, experiments, devices, testing | Copy the methodology rather than every experiment |
| Sinclair | $2,000–6,000 | Supplements + biomarker monitoring | Higher uncertainty around incremental benefits |
| Kurzweil | $5,000–15,000+ | Very large supplement/intervention stack + monitoring | Difficult to justify as a consumer template |
| Attia-style prevention | $5,000–20,000+ | Advanced diagnostics and physician oversight | Potentially high value when testing is targeted to actual risk |
| Johnson consumer Blueprint | $1,500 basic; ~$3,000–10,000 fuller version | Stack, food, testing, monitoring | Increasingly affordable at consumer level |
| Johnson personal extreme version | Far higher; no current transparent annual total | Medical team, advanced diagnostics and experimental interventions | Not a realistic consumer benchmark |
These are rough Guidefinances replication estimates, not claims about each person’s private annual expenditure. Prescription medicines, private physicians, medical procedures, travel and one-off equipment can change the total dramatically.
Guidefinances Conclusion: The 80/20 Longevity Stack
The most interesting conclusion from comparing these six people is that their similarities become stronger as we move away from exotic interventions.
If we only adopt practices supported by roughly 80% or more of the group, the stack looks remarkably ordinary:
- Exercise consistently.
- Maintain strength and aerobic capacity.
- Protect sleep.
- Control blood pressure, glucose and cardiovascular risk.
- Eat predominantly high-quality food and avoid metabolic excess.
- Measure important biomarkers periodically.
If we move to the approximately 60–70% consensus level, a few relatively conventional supplements begin to appear:
- creatine;
- omega-3 where appropriate;
- vitamin D where status or risk justifies it;
- possibly magnesium depending on diet and objective.
Only after that do we reach the compounds that dominate longevity headlines: NMN, NR, resveratrol, senolytics, metformin for healthy people, peptides and other emerging interventions.
The most expensive longevity stack is easy to build. The harder task is identifying the smallest one that captures most of the likely benefit.
Editorial and Medical Note
These profiles summarize publicly available statements, protocols and commercial offerings reviewed through 11 August 2026. Public figures change their routines, and absence from this profile should not be interpreted as evidence that a person does or does not currently use a specific intervention.
Personal use by a scientist, physician or influencer is a low level of medical evidence. Prescription medicines, peptides, hormone therapies, advanced diagnostics and experimental longevity treatments should never be copied from a public protocol without individual medical assessment.
Principal Sources
- Ray Kurzweil — 2024 interview
- Tim Ferriss — 2025 supplement and health Q&A
- Peter Attia — 2026 medications and supplements framework
- Huberman Lab — Daily Blueprint
- Huberman Lab — Supplementation
- David Sinclair — Lifespan 2026
- David Sinclair — disclosed affiliations
- Bryan Johnson — 2026 Blueprint protocol
- Blueprint — current biomarker program
Important: these profiles describe public positions and personal experiments. They are not medical recommendations. Prescription drugs, peptides and experimental longevity treatments require a much higher evidence and safety threshold than exercise, sleep or ordinary preventive care.
Guide Finances 