How many studies support Nature Exposure?

A systematic review and meta-analysis of cohort studies in The Lancet Planetary Health found greater green space exposure is associated with lower mortality, a finding reinforced by an independent systematic review of residential green space and by a dedicated meta-analysis in older adults finding lower mortality and cardiovascular risk. That's backed by 10 published studies in Vitaebase's database, including 1 randomized controlled trial and 9 meta-analyses, the most recent from 2026 -- a fairly substantial body of research for a single topic.