Ask a physio: Can you really feel the weather in your joints?

Everyone knows someone who can forecast the weather with a knee. My grandmother could. A twinge in the hip on a clear afternoon, and she would tell you rain was coming by morning.

Often enough, she was right.

If the first grey, wet stretch of fall has left you stiffer and achier than usual, you are in good company. It is one of the most common things people mention.

Let me start with the reassuring part. Cold and damp are not harming your joints.

That can be hard to believe when your hands feel like rusted hinges on a wet morning. But something else is going on.

The research on weather and pain is murky. But plenty of people would tell you they settled this long ago. Many who live with migraines, or with osteoarthritis, will say the cold, damp days are their worst, year after year. They are not imagining it.

We see the same seasonal pull with mood. As the light fades in the fall, some people predictably feel flatter, a pattern known as seasonal affective disorder. That dip is nothing to apologize for.

Pain seems to follow a similar rhythm. The ache is genuine. The damage is not.

So what is actually happening?

Part of it may be direct. When a storm moves in, the barometric pressure, the weight of the air pressing on us, drops. Researchers suspect that small shift can let sensitive tissues swell a touch, and that cold makes the nerve endings that send danger signals to the brain, called nociceptors, a little quicker to fire. These effects look modest at best, and hard to pin down.

For many of us, a bigger driver is simpler: our own habits. When the weather turns, they turn with it, and the walk after dinner becomes the couch after dinner. Cold muscles are stiffer and a bit more tender, the way modelling clay is harder to work cold than warm. Move less and the body feels it: joints get creakier, everything takes more effort, and with darker mornings and patchier sleep we notice our aches more.

None of that is damage. It is a body that has cooled down and slowed down, doing exactly what bodies do when they stop moving as much.

And that points straight at what helps.

Keep moving through the season instead of hunkering down until spring. A daily walk, bundled up, on the dyke trails or just around the block, counts.

The payoff runs well past a stiff morning. Staying active year round steadies us against injury, low mood, and the illnesses that make the rounds.

Warmth helps too, less as treatment than as permission. A hot shower or heating pad can make the first stiff movements easier, so you actually go.

Ease in gently before the cold stuff. Walk the first few minutes easy before you pick up the pace. Dress for the weather so the cold is not a reason to stay in.

And go easy on the story that winter is when your body falls apart. That story keeps people on the couch, which is the one thing that reliably makes stiffness worse. So on the greyest, achiest mornings, decide the walk before the day does, and follow the plan, not the feeling.

Your grandmother’s knee probably was telling her something. But feeling the weather is not the same as being harmed by it.

The goal isn’t to wait out the grey until your body feels good again. It is to stay gently in motion through it, so the grey has less to work with.

Warm up, bundle up, keep moving. Spring will look after itself.

Sean Overin is a registered physiotherapist who coordinates the Chronic Pain Program at Tall Tree Health, which has a clinic in Port Coquitlam. This column is general information, not a substitute for individual medical advice.