It's a lot cheaper to go to a doctor's visit that your insurance covers completely, get assessed for at risk for a heart attach, and then then be on generic statins and aspirin and Lisinopril with yearly checkups, even for decades, than have a single heart attack. Active coverage encourages people to use services that can get them treatment before a problem becomes evident via massive heart attack. Same thing with osteroperosis, intestinal bleeds, cancer, diabetes, COPD, blood pressure, thyroid issues.. an entire field of medicine called ambulatory Care where a patient is well enough to be walking around but the idea is to keep them that way