Association between time spent outdoors during the day and biological age acceleration among UK Biobank participants

Feb 14, 2026International journal of environmental health research

More time spent outdoors during the day linked to slower biological aging in UK adults

AI simplified

Abstract

An optimal time spent outdoors is associated with two hours per day in summer and one hour per day in winter for minimizing biological age acceleration.

  • Biological age acceleration was measured using two methods: Klemera-Doubal method biological age (KDM-BA) and phenotypic age (PhenoAge).
  • KDM-BA acceleration increased with time spent outdoors beyond the optimal duration, while PhenoAge acceleration increased with longer outdoor time regardless of the season.
  • PhenoAge acceleration decreased with shorter outdoor time in both summer and winter.
  • A negative association between time spent outdoors and KDM-BA acceleration was found only in winter.

AI simplified

Full Text

Full text is available at the source.

what lands in your inbox each week:

  • 📚7 fresh studies
  • 📝plain-language summaries
  • direct links to original studies
  • 🏅top journal indicators
  • 📅weekly delivery
  • 🧘‍♂️always free