Huberman Lab

How Nature & Other Physical Environments Impact Your Focus, Cognition & Health | Dr. Marc Berman

267 snips
Jul 14, 2025
Dr. Marc Berman, a Professor of Psychology at the University of Chicago, discusses the profound effects of natural environments on cognitive function and mental health. He reveals how even brief moments in nature can restore focus and reduce mental fatigue. Berman emphasizes the importance of incorporating natural elements into daily routines to combat attention depletion. He also explores the negative impact of digital distractions on cognition and provides practical strategies for enhancing productivity through nature immersion.
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INSIGHT

Directed vs Involuntary Attention

  • Directed attention is the ability to focus deliberately, which gets depleted when used extensively.
  • Involuntary attention is captured automatically by interesting stimuli and is less tiring to the brain.
INSIGHT

How 20 Minutes in Nature Supercharges Your Focus and Mental Health

Taking just a 20-minute walk in nature significantly restores your directed attention and boosts working memory by about 20%, compared to urban walks that demand more vigilance and deplete attention.

Nature provides "softly fascinating" stimulation—elements like fractal patterns and natural sounds that effortlessly capture involuntary attention without overwhelming it.

This unique stimulation allows your brain to rest and recharge its focus capabilities, making nature walks not just relaxing but cognitively restorative.

Even brief exposure to images or sounds of nature can improve attention, though the effects are strongest with actual immersion.

People with clinical depression show even stronger cognitive benefits from nature walks, suggesting nature helps free up mental resources from rumination.

Whether at the start or middle of your day, when focus is faltering, stepping into nature without distractions like phones can reset and enhance your attention capacity.

ANECDOTE

Nature Walks Boost Working Memory

  • In a controlled study, participants' working memory improved 20% after a 50-minute walk in nature versus an urban walk.
  • The benefit was present even on cold days when participants disliked the walk, showing effects beyond just mood improvement.
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