How the biological clock of the newborn is formed

How the “biological clock” of the newborn is formed

[Introduction]The “biological clock” governs the regular movement in the human body.
Newborns’ movements are not reflective, and their response to an environmental stimulus sometimes manifests as a startle or jitter.
  Rather, the spontaneous activity of these arms and legs of the newborn has an internal rhythm, which reveals that there is a substance that governs movement in the brain of every newborn. This substance is part of neural tissue.Call it the “biological clock”.
  How is the neonatal biological clock formed? So how early and to what extent do these rhythms occur?
Psychologists found that as early as 20 weeks of pregnancy, the fetus already had the same spontaneous exercise.
This shows that there is a lot of movement of arms and legs early in every life.
  For every newborn, the change in exercise volume is slight. Relatively speaking, some newborns are more active and some are less active.
The range of motion can be said to be wide, but special cameras are needed to observe these activities in time.
Don’t be disappointed if you can’t see your baby’s rhythmic movement in the naked eye.
As long as you observe carefully, you will surely observe that this rhythm does exist.