Yes people have woken up after being on life support.
Yes, it is
Without protection, a person would not survive long on Mars due to the lack of breathable air, extreme cold temperatures, and intense radiation exposure. To survive on Mars, a person would need a life support system providing oxygen, heating, shelter, and protection from radiation.
It does not affect longevity of a person's life.
As long as a machine is pumping blood throughout the body I don't see why not.
Saturn can't support life because it has no oxygen and has poisonous gases in which no life can survive. ---- Plus the pressure is a lot greater than ours
No, not unless the person had very advanced life support systems. Uranus' atmosphere is toxic and very cold. It does not even have a solid surface.
can a person move their hands and body on life support and brain dead.
Maintenance of the vital functions of a critically ill or comatose person or a person undergoing surgery: "a life-support machine".
Whether to keep a dying person on life support is a personal or family decision. If the person is suffering it might not be fair to keep them on life support.
No, humans could not survive on Uranus. The extreme cold temperatures, lack of breathable oxygen, and high levels of toxic gases such as methane and hydrogen make it inhospitable for human life without significant technological support.
No, it is not possible for humans to survive on the moon without life support systems. The moon lacks a breathable atmosphere, has extreme temperature variations, and does not have enough resources to support life.