| | Conditions & Treatments | Heart Attack Why do heart attacks occur on a Monday? This is a misconception. There is no evidence to suggest that heart attacks occur more frequently on Mondays than on other days of the week. Heart Attack - Related Articles How to Know if You are Having a Heart Attack How to Exercise After a Heart Attack Causes of Heart Attacks Heart Attack Syndromes in Women Benefits & Risks of Taking No Flush Niacin What are symptoms of a heart attack? What does a patient have to do during cardiac rehab?