DNR stands for Do Not Resuscitate. It is a legal order for doctors to withhold treatment in the case of heart or breathing failure. In the US, 80% of people say that when facing a terminal illness, they would prefer to avoid aggressive life-saving treatment. This number increases to nearly 90% among doctors. This may be because doctors are more knowledgeable about the suffering and reduced quality of life after treatments such as CPR and electric shock.