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Negative ion study from Japan

Thanks to Stephen Colmant for digging out this study on the effects of negative ions. Summary:  “The results suggest that negative ions may amplify the effects on humans of the sauna.”

It is wildly known that wood burning saunas create negative ions, akin to the experience of being close to a waterfall.  The technical explanation of this is most welcome, please comment.

Though I appreciate the study and hope to dive into it further, my view on this is somewhat like Bob Dylan’s when he wrote Subterranean Homesick Blues

“you don’t need a weatherman to know which way the wind blows.”

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