What Was Elvis Presley’s Cause of Death? There’s Been Debate

In 2013, physician Forest S. Tennant Jr. claimed that Elvis’s “drug abuse had led to falls, head trauma, and overdoses that damaged his brain,” as well as a toxic reaction to codeine.

When DNA analysis was done on a hair sample in 2014 that was claimed to have belonged to Elvis, also per The Guardian, it revealed that he had genetic variants that could have led to glaucoma, migraines, obesity, and the heart muscle disease hypertrophic cardiomyopathy. This was the most conclusive evidence to date.