Many people believe an hour at the gym can cancel out a day spent sitting at a desk. Cardiologists explain that it is not that simple. Exercise protects the heart, but long unbroken hours of sitting can still raise the risk of high blood pressure, high blood sugar, weight gain and heart disease, even in people who work out regularly. Experts advise breaking up sitting time by standing, stretching or walking for a few minutes every 30 to 60 minutes. Taking the stairs, walking during phone calls and short movement breaks all add up. Along with regular exercise, a balanced diet, good sleep and routine health check-ups support heart health. If you have chest discomfort, breathlessness or unusual fatigue, consult a doctor promptly.
