The stem-cell level is the best signal
The repairing and building ability of the human body differs in chilhood, in adulthood and in old age as well. The number of stem-cells in 5 liter blood varies between 5 to 25 million.The stem-level is the best signal of the health of the flux. Better than the cholesterol level or the blood pressure,or diabetes etc. Better than anything known as cardiovascular risk, and this applies to everything in the body. The greater the number of stem-cells in the body, the better the health condition is.
According to the researches of the latest centuries, it can be stated with great certainity, that stem-cells are the most highest of our bodies.