noun
the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood
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During diastole, the heart relaxes and fills with blood before contracting again during systole.
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Diastole is the phase when your heart is chilling out and getting ready to do its thing.
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I can feel my heart doing its diastole thing, just taking a breather before the next beat.
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In the diastole of life, take a moment to relax and recharge before tackling the next challenge.