The brainstem back links the brain for the spinal twine. It controls features important to lifestyle, such as coronary heart amount, blood pressure level and respiration. The brainstem also is vital for rest.?? ????? ????? ??? ? ??? ?? ?? ???????? ???? ???? ????? ????? ?? ???? ??? ? ??? ??? ?????????? ?? ???? ?? ?? ???? ??? ???? ?????? ?? ??????? ?