A score should show its work.
A 0–100 summary of recent protocol activity, selected biomarkers, connected health data, and logging consistency. It is a feedback tool—not a diagnosis, prediction, or comparison with other people.
11
Biomarkers
4
Scoring pillars
0–100
Composite index
Input-aware
Refresh model
The Vivy 11
A compact marker panel with visible rationale.
The panel balances research relevance, distinct information, practical availability, and the ability to interpret each result with appropriate personal and clinical context.
8 universal2 sex-specific1 contextualReview all marker rationale +
8 Universal Markers
ApoB
CardiovascularCounts atherogenic lipoprotein particles, including particles that are not fully represented by an LDL cholesterol value alone.
European Atherosclerosis Society Consensus Statement (2019)
Fasting Insulin
MetabolicAdds context about insulin regulation that glucose and HbA1c do not provide on their own. Results should be interpreted with clinical context.
Kraft DA (2011)
HbA1c
MetabolicAn estimate of average blood glucose exposure over roughly two to three months, offering a longer view than a single glucose reading.
hsCRP
InflammationA commonly available marker used to add context about systemic inflammation and cardiovascular risk when interpreted alongside other findings.
Ridker et al. (NEJM, 2002; JUPITER trial)
Body Fat %
Body CompositionTotal adiposity measured by DEXA and interpreted with sex- and age-specific reference ranges. DEXA distinguishes fat, lean, and bone tissue.
Visceral Fat Area
Body CompositionMetabolically active fat surrounding abdominal organs. Independently associated with insulin resistance, cardiovascular disease, and accelerated biological aging.
Neeland et al. (2019)
Lean Mass
Body CompositionRelative muscle mass as a percentage of body weight. Research links muscle mass with functional independence and health outcomes across aging.
Srikanthan & Karlamangla (2014)
Vitamin D
HormonalA nutrient and hormone precursor involved in bone, immune, and metabolic processes. Clinical interpretation depends on the assay, individual, and care plan.
Autier et al. — meta-analyses on cardiovascular, cancer & immune outcomes
Male Hormonal Markers
Testosterone
Central to metabolic health, muscle maintenance, bone density, and cognitive function. Scored with age-stratified ranges (18–29, 30–44, 45–59, 60+).
IGF-1
Declines with age and is linked to metabolic health and body composition. Age-stratified scoring ensures fair comparison across decades.
Female Hormonal Markers
Estradiol (E2)
Primary female sex hormone with profound cardiovascular, bone, mood, and cognitive effects. Phase-appropriate ranges for pre- and post-menopausal status.
Testosterone
Scored against female reference ranges — not the male range. Important for metabolic health and body composition across the lifespan.
Bonus Marker
DHEA-S
An adrenal androgen that often changes with age. Vivy interprets it using sex- and age-specific reference context.
The 4 Pillars
What the score actually measures.
Adherence
30%Measures logged actions against expected actions over a rolling 7-day window, per protocol. The short window keeps the feedback tied to recent behavior rather than a monthly average.
Biomarker
25%The Vivy 11 covers metabolic, cardiovascular, hormonal, and body-composition context. Labs and daily physiology provide complementary views of recorded status and change over time.
Health
25%Sleep duration, resting heart rate, steps, and VO2max add day-to-day context from connected health data. Their trends can be reviewed alongside protocols without assuming that one caused the other.
Kokkinos et al. (NEJM, 2022)
Consistency
20%Adherence asks: are you following your protocol? Consistency asks: are you showing up? Intermittent high adherence is not the same as consistent engagement. Scored as days with at least one log divided by seven — forgiving of single misses without rewarding erratic engagement.
Personalization
Your score adapts to you.
Biological sex
Determines which hormonal markers you're scored on and applies sex-specific reference ranges to body fat %, lean mass, and DHEA-S.
Age
Calibrates ranges on markers that change across the lifespan. Four brackets (18–29, 30–44, 45–59, 60+) based on Endocrine Society guidelines.
Mobility profile
If you use a wheelchair or have a mobility limitation, step count is excluded and remaining Health metrics are scored equally. No structural penalties for inaccessible goals.
Data availability
When labs are missing, the Biomarker pillar weight redistributes instead of treating missing data as a poor result. The score reflects the inputs currently available.
Excluded metrics
What's not in the score — and why.
HRV
Useful for within-person trends, but measurement and sampling differ across devices. Scoring it could introduce hardware-related differences unrelated to health change.
Sleep quality / stages
Sleep quality scores vary significantly between wearables with no consensus measurement standard. Duration has the strongest evidence base and most reliable cross-device agreement.
Supplement brand or source
Vivy is protocol-agnostic. The score considers whether you follow the plan you recorded, not the brand or source of a supplement.
Data Freshness
Your score reflects the age of its inputs.
Adherence & Consistency
These components recalculate as new logs are processed, using a rolling seven-day view.
Biomarkers
Blood labs count at full value for 30 days, then gradually decay to zero at 180 days. DEXA scans count at full value for 90 days before the same reduction.
Health metrics
Scored on the last 7 days of Apple Health data. If a metric hasn't synced recently, Vivy recognizes the gap and adjusts accordingly.
Research Notes
Sources inform the model. They do not erase uncertainty.
The source ledger shows why a marker was considered. It does not mean every association is causal or that a population-level result predicts an individual outcome.
See your score in action.
Vivy does not provide medical advice. The Longevity Score is an informational tool. Consult your physician before making changes to your health protocols.