Is the Medical System the #1 Cause of Death in the U.S.?A new analysis from the British Medical Journal found that one in twenty patients experience preventable harm in medical care settings. The authors point out that patient harm in healthcare is a “leading cause of morbidity and mortality internationally.” We’ve been saying this for quite some time, and even these troubling numbers might be understating the problem. Gary Null has estimated that conventional medicine is the number one cause of death in America, killing almost 800,000 a year. Others have said that prescribed medication is the third most common cause of death globally after heart disease and cancer. Skeptics often deride natural medicine as unscientific and ineffective. These claims are of course untrue, but if the same critical eye was applied to conventional medicine, perhaps much suffering and death could be avoided.