The Journal of Chinese Medicine
Dr. Steven Schram, PhD, DC, LAc, conducted a study, reported there in 2002:
He showed numerous experts, the list of acupuncture points, impacted by the straps and boxes, Tefillin.
Those non-Jewish oriental masters, were only shown the list of points, without reference to the Mitzvah at all; and were asked, what would be the effect, of stimulating that set of points.
The unanimous answer: Mental clarity, and spiritual wellness.
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Tefillin black boxes containing holy writings, that religious Jews put on every morning, except on Shabos and Yom Tov.