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Jimmy Mohamed@dr.jimmy.mohamedTikTok

Le secret de la longévité japonaise révélé ? Une immersion en forêt ! 🌳 Marche, vert …more

original sound — @dr.jimmy.mohamed

what it claims

The practice of forest immersion (or 'forest bathing') contributes positively to health and mental well-being and could partly explain Japanese longevity thanks to physical activity, stress reduction, and the soothing sensory environment.

mixed

The link between forest immersion (Shinrin-yoku) and health is based on several studied axes.

noli's read

The link between forest immersion (Shinrin-yoku) and health is based on several studied axes. The reduction of cortisol (stress hormone) and blood pressure after a forest walk is documented by meta-analyses, such as the one published in 'Environmental Health and Preventive Medicine', which confirms significant physiological effects compared to urban environments. The soothing effect of the color green and exposure to natural sounds is supported by studies in environmental psychology (observational and experimental evidence), suggesting a reduction in mental load. While the benefit for stress is robust, the idea that this directly explains Japanese longevity remains a complex hypothesis; longevity is multifactorial (genetics, diet, healthcare system). It is important to note that while relaxation mechanisms are validated, the extrapolation toward an extension of life expectancy is an interesting correlation but difficult to isolate scientifically. The 'spring water' aspect deserves caution, however, as natural potability is never guaranteed without prior bacteriological analysis.

the sources

  1. 1White MP et al. 2019

Claimed by Jimmy Mohamed. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
B-

Linked to, not proven to cause.

Effect
odds of reporting good health/wellbeing, >=120 min/wk in nature — higher (associational)
Measured on
cross-sectional survey, ~20,000 adults, England

What’s uncertain

Cross-sectional; confounded by who spends time outside. Wellbeing framing only.

Jimmy Mohamed in the Register113 claims graded · solidity 92/100See their record →

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