The Forest-Bathing Immune Study Everyone Cites Has 37 Participants. We Read It.

A wellness industry worth billions rests on a 2009 review of three small Japanese studies. Read the source and three things emerge: most summaries understate its own duration claim, an independent Taiwanese replication exists at four times the scale and is almost never cited, and an AMSTAR-2 audit rated the review literature built on it 2 moderate, 6 low and 3 critically low confidence. The…