Perhaps those people ought to instead try something easier; like performing cardio vascular surgery.  

It is much easier to build muscle and cardiovascular fitness the younger you are.

I can also tell you from experience that whether you are outdoors or not, if you breathe in enough carbon monoxide, your cardio vascular system will be compromised whereby you may start to get dizzy, nauseous, vomit and pass out.

It has the fourth highest infant mortality rate in the OECD, the sixth highest maternal mortality rate and the ninth highest likelihood of dying at a younger age from a host of ailments, including cardiovascular disease and cancer," reports Bloomberg.Per capita health-care spending in the U.S. is more than $9,000.

Also, why has there been NOTHING on diet and exercise to improve cardiovascular health?

I'm a 30 year old surgical/cardiovascular intensive care unit RN employed full time.

It's a very well known medical center and one of the top cardiovascular surgery centers in the world.

A cardiovascular surgeon three states away has no interest in calling Ruby to find out if she can clean the cabin on Friday instead of Saturday, or calling Joe Handyman to see if he can get over and fish a snake out of the dryer.  

Consuming cocoa reduces the risk of heart attack and stroke, and lowers the risk of death by cardiovascular disease.