Heart disease, including coronary disease, hypertension, and stroke, is currently the No. 1 cause of death in the United States. Coronary heart disease accounts for one of every 7 deaths of all U.S. deaths. That’s more than 350,000 a year. Estimates put the average annual cost for heart disease in the United States at about $2 billion. Increasing evidence suggests that CBD may help with cardiovascular conditions like heart disease and atherosclerosis. Heart disease is caused by blood vessels hardening and plaque buildup over time which reduces cardiovascular function. Plaque can travel to smaller blood vessels where it causes a blockage.