(VIDEO-AT-LINK)Raising the dead may soon become medical reality. According to critical care physician Sam Parnia, modern resuscitation science will soon allow doctors to reanimate people up to 24 hours after their death.At some point, everyone's heart will stop. For most, this is when they begin to die. Doctors succeed in very few cases at bringing the clinically dead back to life. However, more patients could be saved if medical professionals put existing knowledge about the treatment of cardiac arrest to better use, argues critical care physician Sam Parnia, 41, who is leading a revival of research in this field at...