What this world covers
Longevity is the research field that turns insights about aging biology into actionable levers — with the goal of extending healthy lifespan (healthspan), ideally also absolute lifespan. This world covers the discussed pharmacological substances (NMN, NR, rapamycin, metformin, senolytics, AMPK activators), bioenergetic strategies (mitochondrial optimization, NAD+ pathway, spermidine/autophagy) and measurement tools (epigenetic clocks, biomarker panels).
An honest stocktake is important: no medication and no supplement combination is yet proven to extend lifespan in humans. What we have are lifestyle interventions with hard outcome data (Mediterranean diet, strength training, sleep, social bonds) and pharmacological substances with strong animal data whose human translation is still open. Communicating this difference transparently is part of the world — not a sheepish disclaimer.
Why the order matters
In no other world is the temptation greater to skip lifestyle basics and reach directly for speculative substances. Anyone paying 200 €/month for NMN, resveratrol and spermidine while sleeping 6 h, doing no strength training and eating 250 g of meat per day is optimizing in the wrong order.
The most robust longevity effects in humans come from lifestyle:
- PREDIMED (n=7447): Mediterranean diet −30 % cardiovascular endpoints
- Momma 2022 (n=480 000): strength training −10–20 % all-cause mortality
- Laukkanen (n=2315): sauna 4–7×/week −50 % CV mortality, −66 % dementia
- Adventist Health Study (n=96 000): combined lifestyle factors = 10 years of life expectancy
These levers are reproducible, measurable and inexpensive. Pharmacological longevity strategies are complement — not replacement.
The most important levers
Lifestyle foundation
The standard recommendations of geriatrics and gerontology are not sexy but outcome-strong:
- Mediterranean diet: olive oil, fish 2×/week, vegetables, nuts, legumes
- Strength training: 2–3×/week, heavy multi-joint lifts
- Cardio: 150 min moderate or 75 min HIIT per week
- Sleep: 7–9 h, consistent times
- Sauna: 4–7×/week, 80–90 °C, 15–20 min
- Social bonds: strong social networks are 50 % more predictive of mortality than smoking in meta-analyses
NAD+ pathway (NMN, NR)
NAD+ declines 40–50 % with age between 30 and 80. NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors that reproducibly raise NAD+ levels in humans.
Evidence status:
- Animal studies (mouse, monkey): mitochondrial improvement, some aging markers push back
- Human studies: NAD+ rises (+30–60 % at 250–500 mg/day, 8 weeks)
- Outcome studies in humans: so far no hard endpoints (mortality, incidence)
Practical: favorable side-effect profile, acceptable bet, no proven effect on lifespan.
Rapamycin
Pharmacologically the most strongly validated substance for mammalian lifespan extension. mTOR inhibition partially mimics caloric restriction effects.
Animal data: mouse lifespan +9–14 % reproducibly Human data: approved for transplant patients and some oncology indications. Off-label use in longevity practitioners in pulsatile dose (5–10 mg/week, often with 2–4 weeks off). Trade-offs: delayed wound healing, lipid values rise, possible insulin resistance, mucositis.
Stance: not for self-medication from the internet. Anyone considering rapamycin needs a physician with longevity experience and monitoring (blood tests, mouth inspection, wound healing awareness).
Metformin
Diabetes standard medication for decades, excellent safety profile, possibly life-extending even without diabetes (observational data mixed, TAME results pending).
Mechanisms:
- AMPK activation
- Mitochondrial complex-I modulation
- Reduced hepatic glucose production
- Possibly direct effects on aging pathways
Current status: off-label use in healthy adults experimental, TAME Phase III pending. Pragmatically: not expensive, well-tolerated (except initial GI effects), but not yet sufficient for routine recommendation to healthy adults.
Senolytics
Substances that selectively eliminate senescent ("zombie") cells. Strong in animal trials, very early in humans.
Candidates:
- Fisetin (in strawberries): best-tolerated, 20 mg/kg over 2–3 days monthly is a discussed protocol
- Quercetin + dasatinib: stronger but dasatinib is an oncology medication with side effects
- Spermidine (wheat germ, soybeans): autophagy induction, not a classical senolytic but overlapping effects
Practical status: animal hope > human evidence. Low risks with fisetin and spermidine, higher with dasatinib protocols.
How we rate evidence
In this world the most critical discipline is: not mixing animal and human evidence. We weight:
- Human RCTs with outcome endpoints (mortality, disease incidence) — currently not available for any longevity substance
- Human RCTs with biomarker endpoints (NAD+, epigenetic clocks, inflammation) — available for NMN, NR, some senolytics
- Mammalian lifespan studies (mouse, rat, monkey) — available for rapamycin, acarbose, 17α-estradiol
- Mechanism + cross-sectional data — hypothesis-generating
Important: epigenetic clocks and biomarkers are surrogates — not the goal itself. A NMN-induced reduction of DunedinPACE by 0.02 is not the same as proven life extension.
Most common effects and interactions
Longevity substances interact with the same pathways the body regulates via other levers:
- NMN + resveratrol: theoretically synergistic (sirtuins), evidence for synergy in humans thin.
- Rapamycin + insulin / glucose management: rapamycin worsens insulin sensitivity — caution in prediabetic patients.
- Metformin + B12: metformin lowers B12 absorption — check status regularly, supplement if needed.
- Fisetin + quercetin: similar pathways, acute combination possible, sustained high-dose not established.
- Spermidine + autophagy inducers (fasting, resveratrol): overlapping mechanisms, additive effects plausible.
What does NOT belong in this world
- Micronutrients for status correction → World 01 (Foundation)
- Lifestyle interventions like strength training, sauna → World 02 (Methods) — even though they are the strongest longevity levers
- GH secretagogues and hormone substitution → World 03/04
- Classical adaptogens for stress → World 05 (Cognition)
- Recovery protocols → World 10 (Recovery)
Omega-3 is longevity-relevant but belongs primarily in micronutrient basics. Creatine has weak longevity signals (especially for cognition in old age) but is performance-central.
How Biohacking AI operationalizes this
This is the world with the greatest discrepancy between marketing and evidence. Four tools help keep them apart:
- The Biological-age tracker imports epigenetic tests, blood tests and lifestyle data — and visualizes trajectory, not snapshots. Individual values are not informative.
- The Studies database separates strictly by human studies, mammalian studies and cell studies. Anyone with only mouse data gets no green light.
- The Forum collects stacks and blood test trajectories — moderated by advisors with gerontology background, without MLM schemes or affiliate posts.
- The Coach is more conservative here than elsewhere: off-label rapamycin/metformin requires medical guidance, NMN and senolytics are communicated with honest uncertainty.
The goal is not "live longer through more pills." The goal is: live the documented lifestyle levers consistently, and be honest about pharmacological bets — what is a bet and what is proven.