The short version
- Sitting still all day, not any single position, is what wears your spine down.
- Setting your screen, elbows, and chair up right makes a good position easier to hold.
- Changing position every 30 minutes matters more than any expensive chair.
- Chin tucks and shoulder blade squeezes done hourly take under a minute together.
- Pain that is there when you wake or travels into an arm or leg needs an exam.
The problem is not the position. It is the hours.
People think there is one correct way to sit and they are failing at it. There is not. Your spine handles almost any position for a while. What it does not handle is the same position for eight hours.
Joints stiffen when they are held still. Muscles that hold you up get tired and hand the job over to ligaments, which is when you start to sag. Discs in your low back take more pressure sitting than standing, and they like being loaded in different ways through the day.
So the goal is two things. Make your default position reasonable, so the hours cost you less. Then break the hours up.
Set the desk up once.
Ten minutes of setup saves you more than any stretch will.
- Screen at eye level. The top of the screen should sit at about eyebrow height, an arm's length away. If you work on a laptop, put it on a stand or a stack of books and use a separate keyboard. Looking down at a laptop for eight hours is the single most common reason people show up here with a neck problem.
- Elbows at your sides, bent about 90 degrees. Chair height follows from that. If your keyboard makes you reach forward or shrug, it is in the wrong place.
- Feet flat. On the floor if the chair allows, on a box if it does not. Dangling feet drag your pelvis into a slump.
- Hips slightly above knees. That small tilt keeps your low back from rounding under.
- Low back supported. The chair's lumbar support, or a rolled towel, filling the gap behind your belt line.
- Phone off the shoulder. Headset or speaker. Pinning a phone with your ear is a fast way to irritate one side of your neck.
No chair fixes posture. A good chair makes a good position easier to hold. Spending a lot on a chair and then sitting in it for nine hours without moving gets you the same stiff neck a bad one would.
Break the day up.
The best posture is the next one. Aim to change position every 30 minutes, even briefly.
Stand up for phone calls. Walk to fill your water bottle instead of keeping a jug at the desk. If you have a sit-stand desk, alternate rather than standing all day, because standing still for eight hours has its own bill.
Two movements are worth doing every hour, and they take under a minute together. Chin tucks: pull your chin straight back like you are making a double chin, hold five seconds, do five. Shoulder blade squeezes: pull the blades down and back, hold five seconds, do five. That is it. Frequency is what makes them work.
Once or twice a day, stand up and gently arch backward over your hands on your low back. Sitting rounds you forward. That undoes some of it.
What sitting badly actually costs.
Head forward of the shoulders means the muscles at the base of your skull work all day to hold it there. That is where a lot of tension headaches start, and why treating the neck often settles them.
Rounded upper back means the shoulder blade cannot glide properly, so the shoulder joint runs out of room when you reach overhead. That is a common path into shoulder pain.
Slumped sitting loads the front of the low back discs and lets the hips get tight. That combination shows up as a back that seizes when you stand up from the car. Desk work is one of the most common stories behind the back pain we treat.
When to get it looked at.
Stiffness that clears within twenty minutes of getting up is a habit problem. Fix the desk and the hourly movement and it usually goes.
Pain that is there when you wake up, pain that has stopped responding to moving around, or anything travelling into an arm or leg is a different question. That needs an exam, because posture may be making it worse without being the cause.
When you come in, Dr. Boss checks how you move, which joints have stopped, and where the muscles are working overtime, and he shows you what he found on a 3D model of the spine. You leave with a plan and a short list of things to change at your desk that afternoon.
Reviewed by Dr. Christopher Boss, DC, Boss Chiropractic. Last updated September 11, 2026.
This page is general information, not medical advice. What is right for you depends on your exam. Dr. Boss will tell you straight whether we can help, and where to go if we cannot.