Spending 20 To 30 Minutes Outside Each Day Can Significantly Improve Your Mental Health, Study Finds

PHILADELPHIA (CBS) -- A new study says taking a break in your day outside can help reduce stress levels. Researchers suggest just 20 to 30 minutes spent in nature each day can significantly improve your mental health.

Walking, sitting or both; researchers say it doesn't matter.

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The study found nature led to a drop in cortisol, the hormone that produces stress.