Here is one explanation for his death. No one will ever know.
But the true cause of his death is in fact unknown, whether it was an accident, a suicide, or a prevalent genetic killer that caused toxic levels of iron to flood the body, ultimately inciting depression and agony. Experts still debate the reasons behind Hemingway's pulling of the trigger.
A misdiagnosed disorder in his early 50s caused doctors to overlook hemochromatosis, the iron-overloading disorder that causes internal damage of joints and organs, cirrhosis of the liver, heart disease, and depression.