Some 90 percent of Americans have at least one risk factor for cardiovascular-kidney-metabolic – or CKM – syndrome, a term for potentially life-threatening conditions that are all connected.Now, experts at the American Heart Association say more of the country should be screened for one particular risk factor in the first-ever clinical guidelines for the syndrome.Excess body fat is a key driver for all of the conditions that make up CKM syndrome: obesity, cardiovascular disease, kidney disease and Type 2 diabetes, all of which are responsible for the deaths of millions of Americans each year.“Heart, kidney and metabolic conditions don’t occur in isolation — they are deeply connected,” Dr. Chiadi Ndumele, director of obesity and cardiometabolic research at Johns Hopkins School of Medicine,