The 45th anniversary of Elvis Presley's death approaches, and it has been 45 years since the King of Rock and Roll was discovered comatose in the toilet of his Graceland residence on Aug. 16, 1977.

He was one of the greatest idols to ever take the stage, and his untimely death crushed and grieved his ardent admirers.

However, Sally Hoedel's biography of Elvis argued that he was fated to die at such a young age, and that his death was unavoidable.

Elvis Presley Was Destined to Die Young

In an interview with The Sun, the "Can't Help Falling In Love" singer died as a result of genetic problems caused by incest in his family tree, according to Sally Hoedel.

According to the report, he may have inherited the faulty DNA from his maternal grandparents, who married despite being first cousins.

Elvis Presley died of a heart attack when he was 42 years old.

His flawed genes were one of the major causes of the numerous health concerns he experienced before his death, and he was treated with a mixture of prescription medications as a result.

"Elvis' mother Gladys died relatively early at 46, and she had three siblings who all died at comparable ages from heart and lung-related illnesses," the author noted.

"So, it ceases being a coincidence by the time it gets to Elvis because there's so much going on in that family tree," Hoedel continued.

Elvis Presley's biographer also claimed that various hints to the musician's demise may be found in his mother, who died nearly 19 years to the day before her son.

His mother's health deteriorated dramatically in her 40s after acquiring a drug addiction issue, and she died as an alcoholic on August 14, 1958.

Gladys Presley died with a lot of struggles, according to the book, despite being portrayed as having a famous son who bought her a huge mansion but ultimately unable to deal with it all.

However, she believes that the famous mother's death was caused by Alpha-1 antitrypsin deficiency, a hereditary condition that affects the lung and liver and can lead to other health issues.

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But it wasn't only Elvis Presley and his mother who suffered severely; his maternal grandmother Doll Mansell also battled Tuberculosis for decades. Still, Sally Hoedel believes it was a mistake since she, too, may have had a genetic abnormality handed down through her marriage to her first cousin.

"Again, something that doesn't make sense," Hoedel noted, "but has continued to be carried down the family tree and throughout documented Elvis history."

She said, "This book illustrates how, in the early 1900s, tuberculosis was almost probably misdiagnosed. We can determine from the first-cousin marriage that Gladys most certainly received two defective genes as well as a more severe form of the illness."

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