Things that many people may not know about the heart

Everyone knows that the heart is the restless part of the human body, since we were born until we returned to eternity. However, there are some things that many people may not know about the heart :

- An adult's heart has an average length of 10-15cm (usually 12-13cm). The hearts of women have an average weight of 250-300g, while the male heart weighs an average of 300-350g. Every day, the heart pumps about 7,600 liters of blood (an average of 5-30 liters / minute) into blood vessels with a total length of nearly 100,000 km.

- Assuming that in normal conditions, every minute of the heart beats 70 beats, then within 70 years, the heart of a normal person beats more than 2.5 billion beats and pumps 250 million liters of blood.

- The structure of the "love symbol" is quite simple, consisting of 4 compartments (2 ventricles and 2 atria) separated from each other and connected by heart valves.

- The human heart sometimes rests, which occurs during a period of medicine called " diastole " , when the whole body is relaxed.

- The activity of the heart by nerves and endocrine systems controls. The nervous system may increase or decrease the intensity or degree of contractions of the heart. Similarly, hormones can also alter the level of this "love symbol . "

- Can not regenerate heart cells, so we need to be aware of the importance of our heart.

- In order for the heart to work properly, it is necessary to avoid excessive and sudden heavy work. Use functional foods and vitamins and minerals for good heart.

- When measuring blood pressure, people calculate the highest and lowest pressure readings of blood vessels.

- A lot of blood loss can lead to death because there is no blood provided to vital organs in the human body such as the brain (receiving 15-20% of the total blood volume), kidney (20%), and heart ( 5% of blood passes through).