42: Metabolic Health Coach

42 is a personal metabolic health coach designed to help you take proactive steps toward whole-body wellbeing. Built on lifestyle medicine, functional health, and circadian science, 42 offers goal-driven, hyper-personalized recommendations that adapt as your goals change. Use actionable insights for movement, sleep, and heart-rate patterns to reduce chronic risk factors and unlock better daily recovery and performance. 42 works without a wearable, but connects to devices for its full capabilities.

With secure Health Connect integration, 42 aggregates data from Fitbit, Garmin, and other sources (with your permission) to compute a Daily Optimization Score — a single, evidence-based metric that assesses activity balance, sleep health, and heart-rate dynamics. You remain in full control: permissions can be managed or revoked anytime. Start small, track consistently, and discover inside-out improvements to metabolic health.