This form of heart failure is usually caused by long-term high blood pressure. The heart muscle gets stiffer over time and is not able to relax as well.
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What is Diastolic Heart Failure and its causes? Dr. Amy Epps: There's another form of heart failure that's a stiffening of the heart muscle, that's usually the most common form of heart failure, and that's called diastolic heart failure, and it is usually caused by long term high blood pressure. So a lot of elderly people with long term high blood pressure will have heart muscle get stiffer over time, just like your joints get stiffer, things in your cartilage, things in your body gets stiffer over time, and it just can't relax as well. So with each heart beat, your heart is only able to squeeze, and then not relax as well, and then there's a back flow of blood and fluid and you can't get a good effect of heart pumping with each beat.