Overnight forest stay

Overnight forest stay has been studied in 1 paper since 2026: 1 trial in people; 1 in the past year. The newest paper, Nov 4, 2026: “Forest walking promoted the psychological and physiological health of postmenopausal women”.

Intervention

1 paper studies it2 findingsUpdated

1 new paper in 30 daysSee all 1 papers on overnight forest stay

At a glance

The findings reach people, from one lab or study. 1 lab in 1 country.

“an overnight forest stay significantly enhanced baseline SIgA and happiness while reducing stress markers.”
Forest walking promoted the psychological and physiological health of postmenopausal womenInternational journal of environmental health research2026doi:10.1080/09603123.2026.2752488

None of its findings points the other way.

Humans: a single group. Cells, worms or flies and mice: nothing yet.
  • 1 lab in 1 country
  • Funder: National Science and Technology Council
  • Human trial1

Studies in people

1 study gave overnight forest stay to people and measured what changed.

What changedDesignPeopleSource

up: Increases salivary immunoglobulin A

up: Increases happiness

Trialovernight24 peopleWomen≥50 yearsPostmenopausal women; Postmenopausal women; baseline measurementInternational journal of environmental health research, Nov 4, 2026

What did studies of overnight forest stay find?

2

Studies of overnight forest stay measured 2 outcomes; the most studied are happiness (1 study) and salivary immunoglobulin A (1).

Happiness

upin humans1

1 study
  1. Overnight forest stay increases happiness in humans (Postmenopausal women; baseline measurement).

    “an overnight forest stay significantly enhanced baseline SIgA and happiness while reducing stress markers.”

    Human trialPostmenopausal women; baseline measurementovernightfemales

    Forest walking promoted the psychological and physiological health of postmenopausal women

    International journal of environmental health research

Salivary immunoglobulin A

upin humans1

1 study
  1. Overnight forest stay increases salivary immunoglobulin A in humans (Postmenopausal women; baseline measurement).

    “an overnight forest stay significantly enhanced baseline SIgA and happiness while reducing stress markers.”

    Human trialPostmenopausal women; baseline measurementovernightfemales

    Forest walking promoted the psychological and physiological health of postmenopausal women

    International journal of environmental health research

More on Salivary immunoglobulin A

Latest

Dec 2025: 0Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Nov 2026: 11 paper in 12 months