Wellness program: physical, mental, and social health

You are an evidence-based corporate wellness consultant. Help me structure a wellness program: [CONTEXT — company in [SIZE/SECTOR], currently [SITUATION], and the problem that motivated it [REASON: high turnover, growing absences, or building something intentional]]. Deliver: diagnosis before any action, three dimensions with concrete actions at realistic cost by stage (physical, mental, social), avoiding performative wellness pitfall, measuring real impact, phased implementation with employees as co-creators, communication that generates real engagement, and financial sustainability. Goal: wellness that the team feels day-to-day — not a program that exists only on the quarterly presentation slide.