At baseline, at 6 weeks, and at 12 week of follow up, all participants will fill up an interview questionnaire identified by the American Heart Association. This questionnaire consists of items pertaining to warning symptoms of stroke and heart attack (HA) as well as cardiovascular diseases (CVD). The structured questionnaire contained 18 items, including 9 items for stroke and 9 items for HA warn¬ing symptoms, as well as 11 items for CVD risk factors.