stressful situations trigger fight or flight response
fight or flight requires prepping the muscles in your arms & legs with oxygen rich blood (this also increases breathing rate)
your heart needs to pump faster to move oxygen rich blood through body (some of which is redirected from non-essentual processes like digestion)
[side note: this results in higher blood pressure & i’ve heard it might affect clotting but i dont think thats ever been confirmed???]
SO at this point the heart is working harder and can result in a few things. chronic stress can do things like thicken the heart walls which will make it harder to pump (kinda like how ppl with huge biceps and pecs have a hard time grabbing their opposite shoulder).
the high blood pressure is the usual trigger of heart attacks to my knowledge. mostly because if there are thick arterial walls due to plaque caused by things like high cholesteral they can block oxygen from getting to your heart and u need the oxygen to reach ALL parts of the heart for the heart walls to pump in sync. if oxygen is blocked for more than a few seconds to even a portion of the heart wall then the heart starts beating out of sync (aka arrhythmia) which then disrupts blood flow to…..everything.
stress causing high blood pressure often makes heart conditions worse – resulting in higher chances of heart failure
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