In it they stated that the United States Constitution would grant a competent person a constitutionally protected right to refuse<span> life-saving </span>medical treatment<span> Whether for financial, spiritual or religious reasons, a </span>patient has<span> the ultimate say over what is done to his or her body.</span>
It depends, you really cant decide that but the meaning of life is death so does it really matter?
I'm pretty sure it is physical and mental development