Why doesn’t the heart muscle get tired during a person’s life?
| January 4, 2021 | education
The human heart works automatically. During the cardiac cycle, the atria contract 0.1 seconds and rest 0.7 seconds.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
