Breathe Negative Ions to Boost BrainpowerThe air near waterfalls can literally help you think better.

From the show

Practical Body Science

That feeling of mental clarity you get in nature isn't just in your head. Exposure to negative air ions—found abundantly near waterfalls or after storms—is scientifically shown to enhance cognitive performance. Studies reveal that these environments can lead to faster reaction times and greater accuracy. The proposed mechanism involves an increase in the brain's alertness and processing efficiency, possibly through improved oxygen flow. This offers a physiological explanation for why fresh air feels so refreshing.