Get Up Every Hour

There is a chair in my office that fits me a little too well. I sit down after breakfast to answer a few emails, and the next time I look up, two hours have gone. Bradley is standing by the door, staring, waiting for me to remember he exists. Usually he is right. Usually I have forgotten something, and it is him.

It turns out he has the better instinct.

For years the advice was simple. Sitting all day is bad, so go get a workout. Thirty good minutes at the gym and you have earned your chair. The research has quietly changed its mind about that. It is not only how much you move in a day. It is how often you break up the sitting.

A team at Columbia University tested this directly. They had people sit for eight hours and tried different small doses of walking to see what actually helped. The winner was not dramatic. Five minutes of easy walking every half hour. That alone cut the blood sugar spike after meals by more than half. Even lighter walking lowered blood pressure by about what you would get from six months of daily exercise. And nearly every walking break lifted people’s mood and cut their fatigue.

You do not have to hit thirty minutes on the nose. That is the lab’s gold standard, not a rule you have to obey. The larger point holds at an hour too. A separate study followed nearly 8,000 adults and found that the people who sat in long, unbroken stretches had a higher risk of dying than the people who got up often – even when their daily sitting added up to the same total. The long, still stretches are the problem. Breaking them up is the fix.

So here is the whole idea. Once an hour, get up. Not for a workout. Just up. Walk to the kitchen. Fill the kettle. Stand at the window a minute. Let the dog out, which in my house is not optional anyway. Five minutes is plenty. Two is better than none.

I will be honest with you. It is easy to say and easy to forget. The chair is comfortable and the email is never finished. What works for me is a small timer and a dog who keeps his own schedule. Find your version. Set something that nags you once an hour, and then actually stand up when it does.

Your knees will thank you. So will the rest of you.

If this is your kind of thing, I write three times a week over at the newsletter.