RT Journal Article SR Electronic T1 Why and how to prescribe exercise: Overcoming the barriers JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 645 OP 656 VO 72 IS 8 A1 Fletcher, Gerald A1 Trejo, Jorge F. YR 2005 UL http://www.ccjm.org/content/72/8/645.abstract AB Exercise helps prevent and improve atherosclerosis and other chronic diseases, and physicians should encourage their patients to exercise more. Unfortunately, there are many barriers to prescribing exercise. To help patients start exercising and stay with it, clinicians need to address specifics. Several guidelines are available to achieve this goal.