CardioGreen Check
A personal cardiovascular risk profiler that lets cannabis users input their consumption patterns, age, and basic health markers to understand their individual heart attack and stroke risk — and generates a doctor-ready summary they can hand to their cardiologist or GP.
Recreational and medical cannabis users under 50 who haven't discussed cardiac risk with their doctor
- Personalized risk score based on frequency, method (smoking/edibles), and duration of cannabis use combined with age, BP, and lipid markers
- Pre-built intake script so users know exactly what to tell their doctor without self-incrimination
- Trend timeline that shows how a user's stated use has shifted over time and prompts re-assessment every 6 months
- Clinician-facing one-page PDF export written in plain medical language for easy chart inclusion
Two large studies published via ACC in March 2025 (a 4.6M-person retrospective and a 75M-person meta-analysis) put cannabis-cardiac risk in mainstream cardiology conversation, yet most users in legal states still don't disclose use and have no tool to translate the new findings into personal risk.
ACC.25 (March 17-18 2025) confirmed two studies — 4.6M-person retrospective showing 6x heart attack / 4x stroke risk, and 75M-person meta-analysis showing 50% increased MI risk — covered by ScienceDaily, ACC press, Nature and Scimex; HN thread (124 pts/174 comments) shows real consumer engagement.Cannabis Users Face Substantially Higher Risk of Heart Attack - ACC Press Release ↗Cannabis user at much higher risk of heart attack - Scimex ↗
General CVD calculators exist (ESC, PAHO HEARTS, CIRCL CardioRisk) but none include cannabis as an input variable; cannabis apps (CannaBook 20K users, Strainprint, Cannabis Journal) focus on strain/symptom tracking, not cardiovascular risk profiling — clear gap at the intersection.ESC CVD Risk Calculation App - European Society of Cardiology ↗CannaBook — Intelligent Medical Cannabis Companion App ↗Strainprint - Cannabis tracking app ↗
Niche health-tool category supports $5-20 one-time or low subscription pricing, but use case is episodic (check risk, see doctor, done) — retention is weak and the doctor-ready PDF is the main monetizable asset rather than ongoing engagement.Cannabis Journal App - cannabis tracking app ↗CannaBook — Intelligent Medical Cannabis Companion App ↗
Cannabis legalization continues expanding US state coverage and medical adoption; cardiovascular risk evidence base is compounding (Nature review 2025 confirms synergistic risks with tobacco); tool stays relevant as long as clinical guidelines keep updating — likely 5+ years.The relationship between cannabis and cardiovascular disease - Nature ↗Myocardial Infarction and Cardiovascular Risks Associated With Cannabis Use - ScienceDirect ↗
Standard form-input + scoring + PDF export stack; risk coefficients can be derived from published ACC.25 hazard ratios; no regulatory hurdle if positioned as educational/informational with proper disclaimers; MVP buildable in weeks by a solo dev.Cardiovascular Risk Calculator App - PAHO ↗Cannabis Use Substantially Increases Risk of Heart Attack - ACC Journal Scan ↗