My question: Is Dr jack Rubinstein a Jew? [Practizing?]
https://pubmed.ncbi.nlm.nih.gov/36652449/ Short abstract
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0280216 original article [technical]
“What we found is that wearing tefillin in both male and females caused changes to the heart rate associated with lowering of the metabolism as measured via heart rate variability,” says Rubinstein
“It means that if we can have people wearing tefillin or a similar device….?? similar??….. “This is a low-intensity way of protecting people from heart attacks.”??