American scientists talked about how when a person begins to age. According to their research, with 39 years people have a weakening of motor and cognitive functions of the body.
According to scientists, in 39 years, the body fails to produce the proper amount of myelin, a substance which in the form of the myelin sheath covers nerve cells of the person, protecting them thereby from the negative effects. By reducing myelin gradually weaken a person’s ability.
Now scientists are studying the details of these processes in the future to find a way to stop them.
The study involved volunteers aged 23-80 years. The results showed that the peak production of myelin and human activity occurs at the age of 39 years. Then the body starts the process of ending production of myelin, and the person begins to age.