INTRODUCTION: Mindfulness-based practices can improve workers' health and reduce employers' costs by ameliorating the negative effect of stress on workers' health. We examined the prevalence of engagement in 4 mindfulness-based practices in the US workforce. METHODS: We used 2002, 2007, and 2012 National Health Interview Survey (NHIS) data for adults (aged ≥18 y, n = 85,004) to examine 12-month...