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Lifestyle

Nature & Mood

Even short exposures to natural settings lower cortisol and restore directed attention.

Written by: Ira ZootMedical review status: Not yet clinically reviewed.Last updated: June 4, 2026Evidence: Synthesis of environmental psychology research

This page has been written and edited by the publisher. It has not been reviewed by a licensed clinician.

Quick answer
How much nature time matters?
White et al. (2019) found ≥120 minutes/week in nature was the threshold for meaningful improvements in self-reported health and well-being — whether in one long visit or several short ones.

What helps

  • Green spaces: parks, gardens, tree-lined streets.
  • Blue spaces: rivers, lakes, coastlines — often produce the largest mood effects.
  • Soft fascination: walking, sitting, gentle observation — not phone-checking.
  • Daylight: even cloudy outdoor light is far brighter than indoor lighting and supports circadian function.

Practical floor

Aim for 20 minutes outdoors most days, with one longer 60–90 minute visit weekly when possible. Pair with movement for compounded benefit.

About the author

Publisher and editor of Ketalux, based in Chicago, Illinois. Ira is a ketamine therapy patient, not a clinician. This is editorial review, not medical review: Ira is not a licensed clinician and does not provide diagnosis or medical care. Ketalux does not accept compensation from providers in exchange for favorable editorial coverage, evidence ratings, recommendations, patient referrals, or organic provider ranking. Read the full publisher disclosure →

Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.