We have covered the topic before but Eric Topol's video take on the lessons learned from Tim Russert's untimely death is worth a minute of your time (4 minutes, to be exact). Dr. Topol is the former chief of cardiology at Cleveland Clinic and he currently posts regularly on the video blog of TheHeart.org called Topolog:
Lessons From Tim Russert
Blood clot in the left anterior descending artery (LAD). Image source: Wikipedia, public domain.
MarketWatch: Russert's death is a reminder to be proactive about your health.
Video Interview with Tim Russert's Doctor -- Cause of Death Was a Fresh Clot in LAD