Wrapping and unwrapping the leather straps may restrict blood flow -- and precondition the heart to oxygen deprivation.
Heritage Florida Jewish News
This 'Jewish Matchmaking' star just got engaged – Jewish Post and News
Jewish practice of praying with tefillin can improve heart health in men, too
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Review - American Jewish Archives
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Pittsburgh Jewish Chronicle 6-23-23 by Pittsburgh Jewish Chronicle - Issuu
Study shows regular tefillin use can protect men during heart attacks - Jewish Telegraphic Agency
Tefillin use induces remote ischemic preconditioning pathways in healthy men
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