To alleviate cardiac stress Black looked to blocking adrenalin, a chemical messenger that increases blood flow to muscles and in the process can overtax vulnerable hearts
Wolever TM, Zurbau A, Koecher K, Au-Young F
.. Musculoskeletal issues include tendonitis, ligamentous injury, shoulder pain, knee pain, muscle soreness, and muscle recovery after workouts
When produced excessively, it may suppress the release of Thyroid Stimulating Hormone from the pituitary. 18 It also forces T4 to be converted to reverse T3 (rT3) which actually blocks thyroid function, even though thyroxine levels look adequate when tested. 19 Blood glucose imbalance also triggers cortisol secretion, and insulin resistance may have a direct negative effect on the thyroid, too
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