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question from a user

You mentioned TRT is proven to be good for blood pressure , but why does it feel like my heart beat is much much stronger on TRT? Especially when lying down, or going to sleep, my heart beat is so strong it’s almost distracting.

AlphaMD's Answer

Testosterone therapy has been proven to do a few things, it reduces afterload (systemic vascular resistance), stimulates repolarization of cardiac myocytes by stimulating the ultra-rapid potassium channel-operated current (stronger beats), and improves ejection fraction (each beat pushes more blood).So basically each beat is stronger, pushes out more blood, and pushes against less resistance. This will be more noticable when you lay down at night because when you lay flat, your heart no longer has to compete against gravity with each beat.Take heart (pun intended) that although it may be disconcerting, this sensation of feeling your heart beats when you lay down is because your heart is stronger and each beat is more effective.

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