Prolonged Sitting Silently Raises Heart Disease Risk, Cardiologists Warn

In the quiet architecture of modern life, sitting has become so ordinary that its dangers pass unnoticed — yet cardiologists are now naming prolonged sedentary behavior as a cardiovascular risk factor as serious as smoking or poor diet. Research shows that more than ten and a half hours of daily sitting raises heart failure risk by 40 percent and cardiovascular mortality by 60 percent, even among those who exercise and eat well. The body, it turns out, does not reward virtue in one hour and forgive stillness in the other eleven. What medicine is learning — and struggling to communicate — is th