Lifestyle Medicine: 10-Year Cardiometabolic Risk Simulator

Lifestyle Levers

Diet quality index 55

Exercise (min/week) 90

Sleep (h/night) 6.5

Stress level 60

Projection

Composite cardiometabolic risk

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simulating…

BMI

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Systolic BP

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HbA1c

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LDL cholesterol

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How it works

Four lifestyle inputs combine into a single Lifestyle Score L (0–100, higher = healthier), weighted roughly the way lifestyle-medicine literature ranks the pillars — diet and activity dominate, sleep and stress modulate:

L = 0.32·diet + 0.28·activity + 0.18·sleepQuality + 0.22·(100 − stress)
sleepQuality peaks at 8 h/night and falls off on either side

L sets a personalised target for each biomarker (better lifestyle → lower target BMI, blood pressure, HbA1c, LDL). Each biomarker then relaxes toward that target over simulated months following first-order kinetics — the same shape real physiology follows when an intervention starts:

dV/dt = (target(L) − V) / τ
BMI  τ≈15 mo (fat mass is slow)   SBP τ≈4 mo (autonomic/vascular, fast)
HbA1c τ≈6 mo (~90-day RBC turnover)   LDL τ≈5 mo (hepatic clearance)

A composite risk score blends the four biomarkers' distance from healthy reference ranges (BMI 22, SBP 110, HbA1c 5.0%, LDL 70 mg/dL) versus high-risk ranges, weighted 30/30/20/20 — a simplified stand-in for scores like the ASCVD risk calculator. The spiral trail in the scene is an InstancedMesh tracing all 120 simulated months at once: angle = time, radius = time, height and colour = risk at that month. Moving a slider only bends the future segment of the spiral — the past stays fixed, exactly like a real intervention starting today.

This is an educational simplification, not a clinical risk calculator — real risk depends on genetics, medications, existing disease and dozens of other factors.

Year 0.0 / 10

Healthy trajectory High-risk trajectory Biomarker orbiters

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