with the help of this musical group we want to show you... rhythmic and arrhythmic contractions herman shalch rhythm. one, two. 1 2 3 4 5 the most important thing is that the heart contracts rhythmically, the blood flows to the brain, you see, music, everything is fine, everything is wonderful, if there is a rhythm, everything is good, now i will ask our drummer... krasny to show us a rhythmic rhythm and an arrhythmic failure hermanshevich, and we will depict what is happening in the heart, let's go, and one, two, three, four, everything is good, five, the rhythm is out of order, pause, blood, brain don't... come on, this is the essence of arrhythmia, it doesn't matter why the rhythm is out of order, the result is important, in the end, in all cases, the blood will not flow, guys, thank you for starting a conversation on such a serious topic with the help of such wonderful music. so, we are starting a whole cycle in the program, which is called arrhythmia. so, dear friends, if the heart beats rhythmically, your life is wonderful. what is a normal pulse, herman shaich? 60, 100 beats per minute