In the past few months, multiple mental-health researchers have renewed attention on something surprisingly simple: spending time outside significantly lowers stress and improves mood.

A growing body of research shows that even 20 minutes in nature can lower cortisol levels and improve focus.

… “just a twenty-minute nature experience was enough to significantly reduce cortisol levels.” (University of Michigan).

… “Spending just 20 minutes connecting with nature can help lower stress hormone levels.” (Harvard Health).

Employers and therapists are now recommending “nature breaks” the same way they once recommended coffee breaks.  In an age of screens, algorithms and AI — the antidote might be something ancient: sunlight, fresh air and quiet.

The cheapest mental health treatment in America might be a walk outside.

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