What was Theodore Roosevelt's cause of death?

Theodore Roosevelt Cause Of Death

On the night of January 5, 1919 at 11:00 PM, Theodore Roosevelt experienced breathing problems. He felt better after treatment from his family physician Dr. George W. Faller and went to bed.

Between 4:00 AM and 4:15 AM the next morning, Roosevelt died unexpectedly in his sleep at Sagamore Hill from a blood clot detaching itself from a vein and entering his lungs

He died of a broken heart after his son Quentin was killed in France on 14 July 1918 during aerial combat. He was arguably the favorite son of TR and was the one boy that had most of the admirable qualities of his Father. Teddy Roosevelt, Jr. would name a son of his Quentin in honor of his brother and would be near his side when he was injured in North Africa during the Second World War.

As listed above (by others) you have the physical reason of death of the former President - the heartbreak after Quentin's death in France most certainly contributed to an acceleration of TR's overall depleted health condition.

A blood clot on the lungs.

blood clot

cardiovascular disease