MICROANATOMY

Detailed explanation-1: -The walls of the muscular heart contract and relax rhythmically and this rhythmic contraction and relaxation of the heart constitutes the heartbeat. One heartbeat is responsible for generating one pulse of the arteries. A normal heart beats about 72 times in a minute, on an average.

Detailed explanation-2: -A normal heart rate, when you’re not being active, is generally between 60 – 100 beats per minute. This is called your resting heart rate. Athletes or people who are very fit may have resting heart beats of less than 60 bpm. When you’re active, your heart beats faster to get more oxygen to your working muscles.

Detailed explanation-3: -The human heart beats about 72 times in a minute. Therefore, frequency of our heart beat is 72/60 or 1.2 Hz. This frequency is much less than the audible range. It is a blessing in disguise that we cannot hear sound produced by the heart, movement of muscles and body organs.

Detailed explanation-4: -Thus, our heart beats 103680 times a day.

Detailed explanation-5: -Indians have an average resting heart rate of 80 beats per minute which is higher than the desired rate of 72, Indian Heart Study (IHS) has found. The IHS also highlighted that unlike people of other countries, Indians have higher blood pressure in the evenings than in mornings.