No, heart attacks have nothing to do with heart rate.
A heart attack is a blockage of blood flow to the heart muscle itself. The heart doesn’t just pump blood but is itself a muscle that needs its own blood supply. If that gets disrupted it can quickly result in death of parts of the muscle and/or a disruption in the pumping of blood through the body.
“**Tachycardia**” is defined as a heart rate over 100 bpm.
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