Thank you for the information. It is much appreciated. The condition was listed in my report several years back, but my doctor never mentioned it. It was listed in successive years and from my reading it seemed worse as years went on. No doctor ever mentioned it. Ironically because I exercise a lot, I test well on treadmill tests for aerobic function. I think my only symptom is needing a lot of sleep and often taking an afternoon nap. When I turned seventy this January, my doctor mentioned "your heart disease" for the first time. He told me I could probably expect to live ten more years, "maybe even fifteen." That gave me a jolt, because both of my parents lived into their nineties. I do a pretty good job of eating right and exercising. I just seem to tire more quickly than my age mates. And definitely sleep more. Reading the posts here, I recognize there are far worse things. And actually for me, there is. I have frequent colonoscopies due to numerous polyps and I'm at the " very high risk" range for colon cancer.