The heart beats 654.38+ million times a day. The resting heart rate of healthy adults is generally between 60- 100 beats per minute. According to this calculation, the heart beats about 654.38+ million times a day and pumps about 6-8 tons of blood every day. Newborns have the fastest heartbeat, 70- 190 beats per minute, and athletes who often participate in training have the slowest heartbeat, 40-60 beats per minute. Tachycardia or bradycardia indicate that there is something wrong with the heart. A study published in the Journal of the American Medical Association found that compared with people who kept their resting heart rate at 70 beats/min, people whose resting heart rate increased from less than 70 beats/min to more than 85 beats/min within 10 years had a 90% increased risk of heart disease death.
Women play faster than men. The study found that women's heart rate is about six times that of men. This is caused by the difference in heart size between men and women. The heart is located in the center of the chest rather than on the left. Many people think that the heart is in the left chest, but it is actually located in the center of the chest between the two lungs. Only a few people are born with an upright heart. According to the organization of rare diseases in the United States, right-handed people with inverted internal organs (such as liver and spleen) can live normally without any problems.
The diameter of aorta is close to that of common water pipes. Aorta is the largest artery in human body. The aorta located in the chest is called thoracic aorta, which extends down the left side of the spine to the diaphragm and enters the abdomen, and is called abdominal aorta. The diameter of the vertebral artery is similar to that of the water pipe for watering the vegetable garden. It is a good thing to be broad-minded. An adult's heart is about the size of his fist Men's hearts are bigger than women's, and their blood pumping ability is stronger, so their muscle strength and running speed are better. However, being big is not a good thing. Cardiac hypertrophy is one of the symptoms of heart disease, with many causes, such as virus infection, coronary heart disease, valvular heart disease and arrhythmia.
The heart is not afraid of low temperature. Hypothermia therapy is a method to treat heart disease. According to the guidelines of the American Heart Association, doctors will lower the patient's body temperature to 32.78 degrees Celsius during hypothermia treatment to slow down the damage of cardiac arrest to the brain and other organs of the human body. 20 10 a study published in the journal annals of neurology found that 2/3 patients recovered their heart function after receiving hypothermia treatment. When you sneeze, your heart won't stop beating.
Sneezing will increase the chest pressure, affect the blood flow of the heart, and temporarily change the rhythm of the heartbeat, but it will not cause the heartbeat to pause. In addition, heart failure does not mean cardiac arrest, but the heart does not pump enough blood. Only when the heart stops beating will the heart stop beating.
Monday is the peak of heart attack. A study published in the European Journal of Epidemiology found that the incidence of heart disease in men and women increased by 20% and 15% respectively on Monday. Experts said that this has a lot to do with the sudden increase in work pressure on Monday. In addition, excessive relaxation on weekends and physical discomfort on Mondays are also a major cause of frequent heart attacks.