Decentralized FDA

What factors affect sleep quality?

Based on data from over 10,000 participants, the top factors affecting sleep quality include: melatonin supplementation, blue light exposure before bed, caffeine intake timing, exercise, alcohol consumption, and stress levels. Each factor is ranked by its Predictor Impact Score, which measures causal strength using Bradford Hill criteria.

What improves mood and mental health?

Analysis of millions of real-world measurements shows that physical exercise, sleep quality, social interaction, omega-3 fatty acids, sunlight exposure, and certain supplements like vitamin D are among the strongest predictors of better mood. Results are ranked by effect size (percent change from baseline).

How is this different from correlation studies?

Unlike simple correlations, this database uses causal inference methodology based on Bradford Hill criteria. The Predictor Impact Score integrates 6 causality indicators: temporal precedence, dose-response relationship, consistency across participants, strength of association, specificity, and biological plausibility. This helps distinguish true causal factors from mere correlations.

What are Outcome Labels?

Outcome Labels are like FDA Nutrition Facts labels, but for health outcomes. They show the expected percent change in each health outcome (sleep, mood, energy, etc.) when a treatment or factor is higher than average. Each outcome is ranked by causal evidence strength using the Predictor Impact Score.