October 21, 2026
Your desk job may be easy on your feet, but on your back? Not so much. Sitting for long stretches can be a pain in the back now and cause chronic low back pain later.
"There's a lot of data available that talks about sitting in the workplace and how it affects your back," says Ebby Varghese, MD, an MU Health Care physical medicine and rehabilitation doctor who specializes in pain medicine. "The more you sit at a desk, the more you increase your risk for chronic low back pain."
The good news is research shows the amount of time you spend sitting is less of a factor than your sitting behavior. That means that making small changes in your daily work routine and body position can play a big role in preventing or reducing lower back pain.
How Sitting Affects Your Back
Whether or not your back feels sore after a long day at your desk, you likely aren't seeing the ripple effect sitting can have on your entire lower back. But before you can understand how sitting affects your back, you need to understand the key players in your core:
- Vertebrae are the individual, interlocking bones that stack on each other to form your spinal column.
- Discs are located between each vertebra and act as cushions and shock absorbers. They carry 80% of your total body weight and absorb compressive forces to protect the bones of your spine.
- Abdominal and lower back muscles create a cylinder that — when strong — lifts the upper body off the discs to remove the compression.
As you age, your spinal discs naturally deflate and become less effective at absorbing compressive forces. And if your core isn't helping to support your body's weight, that compression can affect the joints that support the spine and eventually leads to back pain.
"Experts have known for a long time that the compressive forces on your lower back are far worse when you sit and lean over," Dr. Varghese says. "It doesn't mean you'll immediately have back pain — it can take a month, six months or years to happen — but that constant compressive force eventually takes a toll and is a catalyst to back pain."
How to Protect Your Back From Sitting
There are several small adjustments and steps that can prevent back pain caused by long periods of sitting:
1. Reset Your Body to Stop Slouching
If your mother ever told you to, "Stand up straight," then you are no stranger to slouching and poor posture. When you slouch, your shoulders curve forward, your head tilts down and your chest collapses inward.
So, what's so wrong with slouching? It can put incredible strain on your neck and upper spine, and it can also cause your abdominal muscles to get tired more quickly. Tired core muscles provide less support for your spine and discs.
"It takes about 30 minutes before we naturally begin to slouch," Dr. Varghese says. No one decides to slouch, but when you get tired, lose focus or aren't positioned correctly, poor posture can sneak in. "The goal is to sit with your hips forward and your shoulders back, so that you are actively using your core and decreasing the load on your spine."
To reduce the amount you slouch, Dr. Varghese recommends:
- Position your monitor at eye level and place your keyboard so that your shoulders can stay back while you type.
- Reset your body position by taking frequent breaks and reminding yourself to keep your shoulders back.
- Use an ergonomic chair with your buttocks placed against the back of the chair.
2. Don't Just Stand There… Move!
With the rising popularity of sit-to-stand desks, many people think that simply standing while working is enough to protect their back. It's true that sitting without taking a break is associated with reduced disc height in the lower back. And standing does put less compression on your spinal discs than sitting. But the best thing you can do is to take a few minutes to move.
"Data has shown that standing alone is not good enough," Dr. Varghese says. "When you take a break from sitting, you need to move around. The circulation created by position change and movement feeds the discs by delivering nutrients to them."
Set an alarm to take a break every 20 to 30 minutes and be intentional about what you do during that break. Simply walking around the house can be enough of a positional change to offload discs and keep them healthy.
3. Lower Your Psychosocial Stress Level
Psychosocial stress is stress related to our relationships with others, and it can increase the effects of sitting on your back. One study found that psychosocial stress is associated with a 12% increase in your spinal load.
"Whether you just had a disagreement with a friend or see pictures on social media from a party you weren't invited to, psychosocial stress can make you more likely to slouch and slump," Dr. Varghese says.
To combat psychosocial stress, incorporate deep breathing and other stress relievers into your workday. If you feel anxious after a phone call or scroll, take a break and go for a walk to reduce your stress and reset your posture. If you notice that social media tends to be a source of psychosocial stress for you, avoid it during the workday.
4. Strengthen Your Core
What you do while away from your desk can impact the effects of sitting at your desk.
"If you want to avoid low back pain, the advice from experts across the board is to strengthen your core," Dr. Varghese says. Exercises such as bridges, planks and wall sits help engage and activate the inner muscles of your abdomen. "These aren't things you'll do at work, but if you make core strengthening exercises part of your morning or evening routine — alongside aerobic conditioning and stretching — it will get easier to sit without slouching."
Aim to strengthen your core at least two days a week. Consistency is the most important factor. You may start to see meaningful results after six weeks.
5. Take a Comprehensive Approach to Sitting and Back Pain
There are a lot of gimmicks and gadgets available that claim to help with back pain, such as lumbar support pillows, abdominal binders and yoga ball chairs. But no one gadget or approach is going to be effective.
"None of these solutions will independently reduce your risk of developing low back pain," Dr. Varghese says.
He adds that the best approach is a combination of practices including:
- Being regimented with strengthening your core outside of work
- Setting up an ergonomic workstation that focuses on monitor height, lumbar support and wrist position
- Taking breaks with intention throughout the workday
"Ultimately, you have to do the work to build strong support for your spine," Dr. Varghese says. "Remind yourself daily to move and position yourself in a way that benefits your back. The effort will be worth it in the long term."
Next Steps and Useful Resources
- Think it may be time to meet with a doctor? See our spine care services.
