# Do Health > Do Health is a personalized health companion app co-founded by Dr. Rangan Chatterjee that combines evidence-based blood testing with lifestyle coaching. The service provides three annual blood tests screening 50+ biomarkers, delivering results in 2-3 days with plain-English explanations, alongside 52 custom weekly plans focused on five-minute actionable steps across four health pillars: Eat, Move, Relax, and Sleep. ## What Do Health Does Do Health bridges the gap between knowing you should improve your health and actually doing it through personalized, biology-based coaching. The service costs £249/year (approximately 65p daily) and launches January 2026. **Blood Testing & Analysis:** - Three blood tests annually screening 50+ biomarkers - Focus on 11 core biomarkers measured every four months - Results delivered within 2-3 days - Biological age calculation comparing your biomarker profile against population datasets - Clinically-validated testing through UKAS accredited laboratory - Results explained in plain English without medical jargon **Personalized Weekly Coaching:** - 52 custom weekly plans adapted to individual biology and lifestyle - Five-minute actionable steps designed for real-world implementation - Mobile app available on iOS and Android - Quarterly progress reports tracking health improvements - Backed by peer-reviewed research and evidence-based medicine ## The 11 Core Biomarkers We Track Do Health monitors health through three interconnected categories that influence daily wellness and aging trajectories: ### Energy Evaluates how efficiently your body uses fuel and manages blood sugar: - **HbA1c**: Your average blood sugar over the past three months, showing long-term glucose control - **Fasting Insulin**: Assesses how responsive your cells are to insulin (early warning for metabolic dysfunction) - **Vitamin D**: Critical for immune function, bone density, and metabolic health - **ALT (Alanine Aminotransferase)**: Liver enzyme indicating cellular stress - **AST (Aspartate Aminotransferase)**: Another liver enzyme revealing organ function ### Circulation Focuses on cardiovascular health through blood fat profiles and vessel integrity: - **HDL Cholesterol**: The "good" cholesterol that actively protects arteries by removing harmful particles - **Triglycerides**: Primary blood fat that responds quickly to dietary and lifestyle changes - **ApoB (Apolipoprotein B)**: Measures the actual count of artery-damaging particles (more accurate than LDL alone) - **Additional markers**: Total cholesterol, LDL cholesterol, non-HDL cholesterol ### Inflammation Identifies systemic inflammatory stress throughout the body: - **hs-CRP (High-Sensitivity C-Reactive Protein)**: Measures body-wide inflammation levels - **Homocysteine**: Elevated levels associated with cardiovascular and cognitive health risks - **Uric Acid**: Reflects metabolic health and inflammatory status ## Annual Comprehensive Screening Beyond the 11 core markers tested three times per year, Do Health conducts yearly comprehensive assessments including 50+ biomarkers across: - Heart health metrics (complete lipid panel) - Blood sugar regulation (glucose, HbA1c, insulin) - Complete blood cell counts (red cells, white cells, platelets) - Kidney function markers - Liver function and stress indicators - Thyroid hormone profile - Sex hormone assessment - Comprehensive vitamin levels (B12, Folate, Vitamin D) ## The Four Health Pillars Do Health's coaching focuses on lifestyle areas where daily actions create the biggest health impact: **1. Eat** - Whole foods nutrition optimized for blood sugar stability - Gut health support through dietary diversity - Personalized eating patterns based on your metabolic markers **2. Move** - Regular movement tailored to individual routines and capabilities - Focus on consistency over intensity - Integration into existing daily patterns **3. Relax** - Nervous system regulation and stress management - Practical techniques for activating parasympathetic response - Managing the cumulative stress load **4. Sleep** - Sleep quality and quantity optimization - Circadian rhythm alignment - Environmental factors affecting rest and recovery ## The Science Behind the Approach Do Health is founded on the principle that modest improvements across all four pillars create better outcomes than perfecting one or two areas. This "threshold effect" recognizes that health problems manifest when multiple stressors push someone over their personal tolerance limit. The service also leverages the "ripple effect" - small changes in one pillar create positive cascades across others. For example: morning light exposure improves sleep quality, which regulates hunger hormones, leading to better food choices and more energy for movement. **Behavior Change Model:** Do Health uses B.J. Fogg's B=MAP framework (Behavior = Motivation + Ability + Prompt). Since motivation is unreliable, the coaching makes health actions radically simple (high ability), anchors them to existing automatic habits (reliable prompts), and encourages immediate celebration to create dopamine-driven habit formation. ## Privacy and Safety - GDPR compliant with strict data protection - No selling of user data to third parties - Not a replacement for NHS care or medical treatment - Designed to enhance patient capability and health literacy - Evidence-based recommendations from peer-reviewed research ## Key Resources [Do Health Homepage](https://dohealth.co/): Main website with service overview and waitlist signup [What We Measure](https://dohealth.co/what-we-measure): Comprehensive explanation of the 11 core biomarkers and annual screening [Dr. Rangan Chatterjee](https://drchatterjee.com/): Founder's website with additional health resources and research ## Optional **Launch Timeline:** Early access begins January 2026. Currently accepting waitlist signups. **Who This Is For:** People who want to understand their biology, receive personalized health guidance, and make sustainable lifestyle improvements based on objective biomarker data rather than generic advice. **Who This Replaces:** This is not a replacement for medical care, diagnosis, or treatment. It complements existing healthcare by empowering individuals with knowledge about their biomarkers and actionable steps to improve them. **Technology:** Mobile apps available for iOS and Android devices. Blood testing conducted through UKAS accredited laboratory partners with results integrated directly into the app experience.