The heart is one of the main organs in the body. It is the organ that provides the body with energy and various nutrients by carrying these substances in the blood which it pumps throughout the body. The human works throughout the human life at the rate of 80 beats per minute for the adult human without stopping for a moment even during Sleep, and responds to the heart during the work of the nature of the work done by the human at the convenience of the human heart rate of heartbeat and the lowest rate of pulse during sleep, as the rate of heartbeat during the exercise physical activity as a sport in proportion to the effort spent while doing With these exercises.
There are other reasons that lead to the acceleration of the heartbeat without any physical effort may be psychological reasons or because of a particular disease, the first of these are during the fear or anxiety or anger or any of these other feelings that respond to the heart and is considered the acceleration of heartbeat in such These conditions are normal, for example, when the body responds to a sense of danger by increasing the secretion of adrenaline, which works to increase the heartbeat to provide the body with the energy it needs for escape or self-defense, for example.
There are also other diseases that lead to the acceleration of the heartbeat, such as fever and fever, for example, the heart beats as a reaction to increase the temperature of the body and to work to reduce, and other problems that cause the acceleration of the heartbeat are usually related to heart disease itself When the injured heart can not increase the strength of the pulse and the amount of blood it sends in each pulse to the body, it in turn raises the heart rate in order to compensate for the shortage and provide the body with the need for energy.
The condition, called atrial fibrillation, causes a significant increase in heart rate, which often leads to death when it is obtained. The heart rate in such cases may reach more than 250 beats per minute for several seconds leading to death, This phenomenon occurs because of a defect in the node that delivers the power supply to where the signal travels between the atria very quickly and usually detect such cases through ECG.