Heart Rate: How can it Affect You?

The heart is one of the most important organs in your body. It's small, but it is about a thousand times a day, it will carry oxygen and will deliver about 5 quarts of blood for every muscle in your body. The heart is a muscle controlled by the electrical signal generated by the sinus node. This is part of the cardiac conduction system. As with all things, failures are caused by accidents, flaws, and obvious ignorance. Because there is a possibility that it is easily fatal if there is a problem in the heart, it is important to keep the heart healthy and understand the heart rate and its factors.

There are several factors that affect heart rate during rest and exercise. In general, the main factors affecting resting heart rate are health condition and recovery state. It is contradictory, but it is suggested that gender also plays a role (this will be discussed in detail later). Generally, a healthy person tends to have a low heart rate at rest. In the past, some great athletes have a very low resting heart rate. For example, five times more than the Tour de France champion Miguel Duran reported a resting heart rate of 28 beats per minute. The reason is that the size and strength of myocardium increases with appropriate training. Because a strong heart moves more blood per beat (this is called stroke volume), you can do the same amount of work with fewer beats. Your health and your resting heart rate will decrease

Your resting heart rate can tell you much. It reflects your health level, body temperature, altitude, how many times recently you drunk, and how many cups of coffee this morning. High resting heart rate also indicates whether there is a risk of atherosclerosis, sudden death, or cardiovascular disease. Aerobic exercise, in which heart rate increases with long-term exercise of large muscle group, the heart is strengthened and trained to collect more blood every time, eventually slowing heart rate at rest.

The level of exercise and health, age, body temperature, basal metabolic rate, even my own emotional state can also affect heart rate. High levels of hormonal adrenaline, norepinephrine and thyroid hormone can increase heart rate. Electrolyte levels such as calcium, potassium, sodium also affect heart rate rate and regularity; hypoxemia, hypotension, dehydration may increase it. Cardiovascular diseases including heart disease are the leading causes of death worldwide. Most cardiovascular diseases are non-infectious, related to lifestyle and other factors, and become more common as they get older. Heart disease is the leading cause of death, accounting for an average of 30% of worldwide deaths in 2008. In high-income countries, this ratio ranges from 28% to 40%. A doctor specializing in heart disease is called a cardiologist.