■ A paper written by Dr. Yoshikawa and Dr. Aoi has been published in an academic journal.

Dr. Yoshikawa and Dr. Aoi’s paper, 「Titanium-treated surroundings attenuate psychological stress associated with autonomic nerve regulation in office workers with daily emotional stress」, has been published in the 「Physiology&Behavior 2012 Volume108」
The article is available here.