Expanded cardiovascular benefits shown when wearing tefillin - study

 https://www.jpost.com/health-and-wellness/article-729013

The cardiovascular health of both men and women who wear tefillin (phylacteries) around their arms can improve, according to new research at the University of Cincinnati (UC). The study suggests those benefits are the result of ischemic, or reduced, blood-flow preconditioning that produces protection from the damage caused by heart attacks.