How do we sit?

The work of the programmer is sedentary work. We spend most of our time at the table in front of the computer. The back is subject to constant load. Therefore, it is very important to sit correctly.

How to do it right? This is what we were taught at school at the very beginning. Looking at my colleagues, I realized that many have forgotten how to do it. If after ten minutes of work your neck or back is numb, you are not sitting correctly.

You need to sit on a chair as tight as possible. Whatever the gap between the buttocks and the back of the chair. The back should fit snugly against the back. In this position, the back of the chair best supports the back and reduces the load on the vertebrae. The back and neck should be on the same line. Adjust the height of the seat, so that the feet would stand on the floor. Legs should be bent at right angles. If this is not possible, use a footrest. The head must be kept straight, the headrest - it will reduce the tension in the neck. Position the monitor so that you do not need to bend or twist your head. Arms should be free to rest, and shoulders should be relaxed.

It is very important to take breaks in the workout to warm up. You can get up to do a couple of bends, even stretch out of the office and get some air.
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I would like to hear from readers tips.
And yet, I use this kind of chair:


and such, perhaps, the majority. Your opinion about what is more convenient to sit on is curious, maybe someone uses some tricks like a chair-ball .