Rocking chair for falling asleep and for the back

A rocking chair offers unique functional advantages over a conventional static chair.
Firstly, the movement of the lower back muscles helps to relieve certain back problems, such as those suffered by President Kennedy.
Secondly, the rocking motion helps people fall asleep. The inventor of the rocking chair was inspired by the cradle for babies and its primary function is to allow parents to put a child to sleep without having to stand.
Finally, by adapting the inclination of the chair, it can be adapted to the size of the child. But if you want to use the chair to prevent back pain or to put a child to sleep, it is preferable to buy a rocking chair adapted to the child's size.