Did you know there are 6,800 different rare diseases? Rare diseases aren’t all that rare: More than 25 million Americans have one. Today, as #RareDiseaseDay and the final day of #HeartMonth we’re introducing you to Connor Harrell, 10, who suffers from a rare heart disease -- Loeys-Dietz Syndrome. Loeys-Dietz Syndrome is a rare disease caused by the enlargement of the aorta – which delivers blood from the heart to the rest of the body – and it can lead to aneurysms. “Loeys-Dietz is a deadly disea