100,000 is just the gap between heart disease, the #1 killer in America, and the next most common cause of death. 700,000 people died last year of heart disease, continuing a decades-long trend that simply isn’t improving. And the most common symptom is sudden death. Not much we can do after that

Heart disease is such an important, deadly topic that one episode just wouldn’t be enough to cover it. So we’re doing two, starting with a fresh look at the cause of heart disease.