The answer is true, I hoped this helps!!
Your brain has nerves and those nerves run throughout your system so in that case your central nervous system control everything. It is like a director it tells your heart to pump blood it signals everything it even control your homeostasis and reflex.
If the parents are less stressed because of there life experience? and it would be like being raised by your grandparents. if they are less strict on there children because of this factor?
It would probably be okay if they have a really bad disease or a type of cancer just to let them know