Although Martin Luther King Jr. was only 39 at the time of his death, autopsy results revealed the he had the heart of a 60-year-old. Doctors believed this was a result of stress.
King’s original name was Michael King Jr. In 1931, his father became pastor of Ebenezer Baptist Church in Atlanta and adopted the name Martin Luther King Sr. When King was 6 years old, his father officially changed his name on his birth certificate to Martin Luther King Jr.