Regular exercise lowers your risk of heart disease and heart attacks. What science actually shows ✔ Regular gym workouts: * Strengthen the heart muscle * Lower blood pressure * Improve cholesterol * Reduce stress * Reduce heart attack risk by 30–50% * * Doctors actually prescribe exercise to heart patients (called cardiac rehab). . When gym exercise can be risky A heart attack during exercise usually happens when someone: * Has undiagnosed heart disease * Is overweight, diabetic, hypertensive, o