A cardiologist walks through what fifteen years of sedentary research actually says—and the three-minute rule you can start today.
The headline is catchy, but the science is more nuanced. Sitting isn't quite smoking. But prolonged, uninterrupted sitting does correlate with metabolic changes we're only beginning to understand.
The good news: you don't need a standing desk. You need a three-minute rule. Every thirty minutes, stand up. Walk to a window. Do ten squats. Fill a glass of water.
That's it. The intervention is the interruption, not the endurance.