The goal isn't to live longer. It's to stay strong, sharp, and independent for as much of your life as possible. Zoetica is a research platform built around that idea.
19 biomarkers
Evidence-based protocols
25+ peer-reviewed studies
Built by Erik Balians, UCLA
Zoetica is organized so you can jump straight to what matters to you.
These findings are well-established in peer-reviewed literature but rarely make it into a standard clinical visit.
Most of these biomarkers can be ordered through a standard blood panel. Here's exactly where to get them, what to ask for, and approximate costs.
Healthspan is not the absence of disease. It is the preservation of physical and cognitive capability across the lifespan. These four pillars are the most evidence-supported levers available to any individual.
VO2 max — the maximum rate at which your body can consume oxygen during exercise — is one of the single strongest predictors of all-cause mortality ever measured in human research. Its predictive power exceeds smoking status, hypertension, and diabetes in several major cohort studies.
VO2 max reflects the integrated capacity of the heart, lungs, vasculature, and mitochondria to deliver and utilize oxygen. High VO2 max means a larger cardiac stroke volume, greater mitochondrial density, better capillary perfusion, and superior metabolic flexibility. These same factors protect against heart disease, metabolic syndrome, cognitive decline, and cancer progression.
Zone 2 training — sustained aerobic exercise at approximately 60–70% of maximum heart rate — is the foundation of VO2 max development. At this intensity, type 1 mitochondria-rich muscle fibers are trained, mitochondrial biogenesis is stimulated via PGC-1α, and fat oxidation is maximized. Elite endurance athletes perform 80% of their training in zone 2.
Males: Superior (>55), Excellent (51–55), Good (44–50), Fair (38–43), Poor (<38) mL/kg/min at age 30–39. Females: Superior (>49), Excellent (45–49), Good (39–44), Fair (33–38), Poor (<33) mL/kg/min.
Skeletal muscle is not just a tissue for movement — it is an endocrine organ that secretes myokines, regulates glucose metabolism, buffers inflammatory signals, and serves as an amino acid reservoir for immune function.
During exercise, skeletal muscle releases over 600 myokines — signaling proteins that act on the brain, liver, adipose tissue, bone, and immune system. BDNF and IGF-1 released from exercising muscle drive neuroplasticity and cognitive preservation. Irisin promotes mitochondrial biogenesis.
A landmark Lancet study of 140,000 participants across 17 countries found grip strength to be a stronger predictor of cardiovascular mortality than systolic blood pressure. Trackable with a simple hand dynamometer (~$30).
Muscle loss accelerates significantly after age 60, creating a dangerous feedback loop: weakness reduces activity, reduced activity accelerates muscle loss, and resulting fragility dramatically increases fall and fracture risk. A meta-analysis found resistance training associated with a 15% reduction in all-cause mortality.
Sleep is not passive rest — it is the primary period during which the brain clears metabolic waste, consolidates memory, repairs cellular damage, and restores hormonal balance. Chronic sleep insufficiency is one of the strongest modifiable risk factors for accelerated biological aging.
During deep non-REM sleep, the brain's glymphatic system removes amyloid-beta and tau proteins — the hallmarks of Alzheimer's disease — at a rate 10–20× higher than during wakefulness. Chronic sleep deprivation is associated with 1.5–2× higher Alzheimer's risk 25 years later.
Heart rate variability (HRV) — the variation in time between heartbeats — is one of the most sensitive non-invasive markers of autonomic recovery and physiological resilience. High resting HRV reflects parasympathetic dominance and is associated with better cardiovascular health and higher VO2 max.
No single diet has been proven to dramatically extend human lifespan. What the evidence consistently shows is that metabolic health — maintained insulin sensitivity, low systemic inflammation, and adequate protein intake — is the nutritional foundation of healthspan.
Only 12.2% of Americans currently meet all criteria for optimal metabolic health. Insulin resistance is the common thread running through most age-related chronic disease. The triglyceride/HDL ratio is one of the most sensitive proxy markers of insulin resistance — easily obtained from a standard lipid panel.
Older adults exhibit "anabolic resistance" — a blunted muscle protein synthesis response requiring higher per-meal doses to overcome. The leucine threshold (~2.5g per meal) must be met to maximally stimulate mTOR.
Time-restricted eating activates autophagy and improves insulin sensitivity without requiring caloric counting. The CALERIE trial showed 25% caloric restriction slows the epigenetic pace of aging as measured by DunedinPACE.
Longevity science is fragmented. Blood biomarker platforms ignore exercise physiology. Fitness apps ignore molecular biology. Neither connects the dots to the actual goal: not a longer life, but a longer healthspan — more years of strength, clarity, and physical capability.
Zoetica is an attempt to build that integrated resource. The name comes from the Greek zoe (life) and the suffix -tica (systematic study of). It covers the full picture: blood biomarkers, functional fitness markers, evidence-based protocols, and the literature connecting them.
Biomarker reference ranges and healthspan correlation coefficients are drawn from peer-reviewed population studies including centenarian cohorts, caloric restriction trials, and longitudinal aging studies. Reference cohorts include the NuAge study, the CALERIE trial, the Longevity Genes Project (Albert Einstein College of Medicine), and the Leiden Longevity Study. For research and educational use only — not a substitute for medical advice.