BehaviorLens AI: A Multidimensional Health Risk Assessment Platform Integrating Explainable AI

BehaviorLens AI is an intelligent health platform for preventive healthcare, with the core goal of achieving transparent and explainable AI-driven health risk assessment. The platform integrates five categories of indicators: behavioral factors, mental health, social environment, physiological indicators, and clinical health data. It performs risk prediction using machine learning models (logistic regression, random forest, XGBoost) and provides explainable analysis via the SHAP value method, ultimately generating personalized intervention recommendations. This platform aims to enhance the decision-making capabilities of doctors and patients, and is applied in scenarios such as preventive healthcare and chronic disease management.

The modern healthcare system overemphasizes symptoms and laboratory indicators, ignoring key factors in disease occurrence such as lifestyle, mental state, and social environment. In the traditional model, doctors have limited contact time with patients, making it difficult to comprehensively assess complex behavioral dimensions, and extracting and presenting data insights is challenging. Addressing these pain points, BehaviorLens AI builds an intelligent platform that combines AI with explainable methods to assess disease risks from multiple dimensions, providing support for preventive healthcare and personalized interventions.

The platform collects data covering lifestyle (physical activity, diet, sleep), mental health (stress, emotions), social behavior (social interaction, environmental exposure), and physiological/clinical indicators (BMI, blood pressure, medication adherence). The backend uses the Python FastAPI framework and integrates machine learning algorithms such as logistic regression (baseline model), random forest (capturing non-linear interactions), and XGBoost (efficient gradient boosting) to process tabular health data.

The platform achieves interpretability using the SHAP value method: 1. Explanation of prediction reasons, indicating which factors lead to risk scores (e.g., high stress and insufficient sleep increase cardiovascular risk); 2. Feature contribution analysis, quantifying the contribution of each feature to the prediction result; 3. Transparency of recommendation basis, explaining the data patterns derived from intervention recommendations to enhance user trust.

The platform generates a comprehensive health score (percentage/grade system), risk score (probability/grade), disease-specific risk levels (diabetes, hypertension, etc.), and AI confidence score. Risks are divided into five levels: low, mild, moderate, high, and extremely high, facilitating differentiated interventions. It also supports population behavior phenotype classification, such as burnout-susceptible type and high metabolic risk type.

Based on risk assessment results, intervention plans are generated: stress management (meditation, breathing exercises), sleep improvement (hygiene education, schedule adjustment), exercise guidance (type/intensity/frequency), dietary adjustment (nutritional matching, taboo recommendations), medication adherence support (reminders/tracking), and referral suggestions (recommending professional medical help for high-risk cases).

The core value lies in preventive healthcare (early risk identification, cost reduction); chronic disease management (continuous monitoring, adherence support); mental health screening (early intervention for anxiety and depression); and lifestyle intervention (supporting behavior changes for sub-healthy populations).

Data security mechanisms include encrypted storage, identity authentication, access control, etc., complying with medical data regulations. Ethical principles: not replacing clinicians, serving as a decision support tool, emphasizing transparency, human supervision, and patient-centeredness. Future directions: integration of wearable devices, mobile application development, voice interaction, AI chatbots, electronic health record integration, multilingual support, etc. Summary: This platform represents a responsible AI healthcare application, enhancing the decision-making capabilities of doctors and patients and highlighting the value of preventive healthcare.