Should Christians always be healed?

Everyone of us will die when it is our time. Whether we are Christians, Agnostics, Atheists, Buddhists, Muslims, etc, we will all die. Where we will go after we die is what we should be worried about. If God feels that it is a person's time to die, he will not heal him here on earth, but after death all peoples spirits will be made perfect without scars, broken bones, pains, hunger, etc. Some people get mad at God if their prayers aren't answer, which is a normal human response, but when we think about it, sometimes the dead person is better off.