Nature as a sensory anchor

Time in nature is not a guaranteed reset, and research on stress markers uses different settings, durations and measures. What is more immediately useful is simpler: a natural environment gives you sounds, textures, light and movement to notice without asking you to optimise them.

You do not need to call this a treatment or prove that your cortisol changed. Use the walk as a change of attentional input. If you are overwhelmed, choose a familiar, accessible place and keep the practice short.

Try this for 10 minutes: Put your phone on silent but keep it available for safety. Walk at an ordinary pace. Name three sounds, two colours and one physical sensation. At the end, write one sentence: "Before the walk I noticed... After the walk I noticed..." The comparison is the useful data, not a promised biological effect.