How you sit may not seem like a heart issue, but over years it quietly shapes blood pressure, circulation, and inflammation. A "heart-healthy" sitting posture isn't just about looking aligned in your chair; it's about helping blood move more smoothly, keeping your nervous system calmer, and reducing the harm from long sedentary hours. Research now shows that good posture plus regular movement breaks is far kinder to your heart than slumping in one position all day.

When you sit for extended periods of time, blood pools in the legs, the muscles that normally contract to help return blood to the heart shut off, and your blood pressure increases. One hour of sitting continuously in a randomized trial of healthy young men increased their diastolic blood pressure and mean arterial pressure, d

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