A typical workday now begins with a laptop and often ends with one. Between office meetings, traffic, television, and scrolling on phones, many people spend most of their waking hours sitting down. It feels harmless because sitting doesn't hurt. There is no pain, no warning sign, and no immediate symptom.But according to cardiologists, the body keeps a quiet score.Dr Ashok, Chairman, Fortis Escorts Heart Institute, New Delhi, said that growing evidence is showing that spending more than eight hours a day sitting can increase the risk of cardiovascular disease, even in people who make time for exercise.The concern isn't simply about being inactive. It's about what prolonged stillness does to the body from the inside.