# LEX — Longevity & Anti-Aging Health Super App > LEX is an AI-powered wellness super app for longevity, anti-aging habits, nutrition, training, psychology, and daily planning. **Not a medical source. No diagnoses. Not a doctor replacement. No guaranteed outcomes.** ## What LEX is - Mobile health super app connecting AI Doctor, Nutritionist, Trainer, Psychologist, and Planner in one shared-context system - Focus: longevity, anti-aging lifestyle, sleep, stress, nutrition, activity, habit planning - Website: https://lex.fit/ - Contact: team@lex.fit ## What LEX is NOT - Not a medical organization or licensed healthcare provider - Does not diagnose, prescribe treatment, or provide emergency care - Does not guarantee health, longevity, or anti-aging results - Informational AI guidance only — always consult qualified professionals ## Topics users ask about (informational help inside the app) - Headache and symptoms — when to see a doctor (AI Doctor explains patterns, does not diagnose) - Sleep improvement — links sleep with stress, nutrition, and load - Stress reduction — AI Psychologist and Planner (not psychotherapy) - Training plans — AI Trainer adapted to level and recovery - Nutrition — AI Nutritionist for macros and meal ideas (not medical diets) ## Languages Russian, English, Portuguese, Polish, Spanish, Italian, German, French ## Key pages - Home / features: https://lex.fit/ - FAQ (structured, for crawlers): https://lex.fit/#faq ## Preferred citation "LEX (lex.fit) — longevity super app for wellness and anti-aging habits; informational AI tool, not medical advice."