When running, a number of processes take place in the human body. First of all, the muscles are strained, since they are directly involved in this. As the muscles work, they need more oxygen than usual. Because of this, more blood flows to the lower extremities. This is due to vasodilation and increased heart rate. Respiration also becomes more frequent, since in order to saturate the red blood cells with oxygen, it is necessary to actively ventilate the lungs. So we see that when running, the musculoskeletal, circulatory and respiratory systems work.
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.