Time of recovery before heart contracts again?

The time of recovery before the heart contracts again is known as the refractory period, which is the time during which the heart muscle is unresponsive to further stimulation. This period ensures that the heart has enough time to refill with blood before the next contraction. In humans, the refractory period typically lasts about 250 milliseconds for the ventricles. This mechanism is crucial for maintaining a proper rhythm and preventing chaotic heartbeats.