Too much sitting could literally kill!

He was a big man with a bigger laugh, and he had spent fourteen hours on a bus from Kampala. By the time he reached my clinic, one of his legs was swollen, warm, and tender. He thought he had simply knocked it. What he had was a clot — the kind that forms when blood sits still for too long, and the kind that can travel to the lungs and end a life in an afternoon. We don't think of sitting as dangerous. It feels like rest. But the body was built to move, and when we stay still for hours — at a desk, on a long journey, in front of a screen — the blood in our legs slows, the metabolism dips, and the quiet machinery that keeps us well begins to stall. You don't need a fourteen-hour bus for this to matter. The office day, the long service, the evening that disappears into the sofa and the phone — they add up. There's a phrase for it now: sitting is the new smoking. I think that's a little dramatic. But not by much.

Your body is the only place you have to live. It is worth standing up for. Here is the good news, and it is very good news: the fix is small, free, and available to everyone. You do not need a gym. You need to interrupt the stillness. A few things that work, and that I ask my own patients to try:

• Move every 30 to 45 minutes. Fill your water glass, walk over to a colleague instead of texting, take the stairs. Two minutes is enough to wake the blood up.
• On long journeys, work your feet. Point and pull your toes, circle your ankles, and get up to walk whenever it's safe to.
• Walk after meals. Even ten minutes after dinner helps your body handle sugar far better than sitting does.
• Make movement social. A walk with a friend is movement you'll actually keep. Bring someone along. None of this is about becoming an athlete. It is about refusing to let a whole day pass in a chair. The man from the bus recovered, by God's grace and good care. But I think of him often, because his story is so ordinary — and so preventable. So stand up. Stretch. Walk to the window. Then pick one small habit from that list and start today. And, as always — tell a friend to tell a friend.