Why you get colder in a still room

Short answer: In a still room you are not moving, so your body only produces its basic warmth. At the same time, a cool layer of air settles around you when the air does not circulate. That is why you can get cold in a room that felt warm enough when you walked in.

No movement, no extra warmth

Without activity, the body only produces what it needs to keep going. Your muscles are at rest, and the extra warmth you get from walking, standing or carrying things is missing. After an hour at a desk or on the sofa you can feel cold even though the room has not changed. A thin, soft base layer helps. See bamboo underwear for men.

Cold air gathers at the floor

Cold air is heavier than warm air, and in a still room it sinks towards the floor. There can be several degrees of difference between the floor and head height. That is why your feet are often the first thing to get cold when you sit still. A pair of soft socks does more for how warm you feel than you might expect. See bamboo socks.

The still layer of air around you

When the air does not move, a thin layer of cool air settles close around you. Your body has to keep warming it, and that uses up basic warmth that is already in short supply. Clothing that sits softly and close to the skin keeps the warmth nearer to your body instead of letting it drift out into the room.

One more layer instead of more heating

It is cheaper to put on a layer than to turn up the heat in the whole room. Heat from a radiator has to fill the room before you notice it, while an extra layer works straight away and only where you are. A soft sweatshirt over a thin base layer is often enough. See bamboo sweatshirt for men.

Get up now and then

The simplest way to get warmer is to move a little. Stand up, walk to the kitchen, or go up and down the stairs. A few minutes of movement gets your muscles going, and your body starts producing more warmth on its own. You also stir the air in the room a little, so the cold layer at the floor does not lie completely still.

Think about feet and hands

When the body saves warmth, it draws blood in towards the core. Feet and hands get less, and they are what you notice first. Cold feet can make your whole body feel cold, even when the rest of you is warm enough. Keep your feet off the cold floor, on a footstool or a rug, and wear socks all day.

Choose layers that are easy to adjust

A still room is not necessarily equally cold all day. In the morning it can be cool, and in the afternoon the sun may warm it up. Several thin layers are easier to adjust than one thick jumper, because you can take one off or put one on without changing completely. That way you follow the temperature instead of waiting for it.

When it is more than sitting still

If you feel very cold even with several layers on in a warm room, there may be other reasons than sitting still. That is hard to judge on your own. If you notice it changing over time, or it bothers you in everyday life, talk to your doctor about it.

Frequently asked questions

Why do you get cold in a still room

Because the body only produces basic warmth without movement, and because cold air gathers at the floor. A cool layer of air also settles around you that your body has to warm.

Why is it coldest near the floor

Because cold air is heavier than warm air. In a room without circulation there can be several degrees of difference from floor to head height, and your feet feel it first.

What helps the most

Socks and an extra layer. That is both quicker and cheaper than raising the temperature in the whole room, and a few minutes of movement helps too.