Back pain is one of the most common reasons people visit a doctor. You might think it only comes from lifting something heavy or getting injured, but that’s not always the case. Many people develop back pain from small, everyday habits they don’t even realize are causing harm. As a licensed physical therapist, I see this all the time—and the good news is, many of these habits can be changed.
Let’s talk about what you might be doing that’s hurting your back and what you can do to feel better. The best part? These tips are easy to follow and make a big difference, especially if you’re already feeling stiff or sore.
Slouching or Sitting Hunched Over
If you sit with your shoulders slumped and your head forward, you’re putting pressure on your lower back. This position goes against the natural curve of your spine. Whether you’re at your desk, on the couch, or looking at your phone, sitting hunched over can tighten your muscles and lead to pain over time.
Tip: Sit up straight, keep your shoulders relaxed, and make sure your feet are flat on the floor. Take a break every 30 minutes to stand up, stretch, and move your head and neck gently in different directions.
Eating Too Many “Treats”
Unhealthy food choices may not seem like they affect your back—but they do. A diet high in sugar, processed foods, and unhealthy fats can lead to inflammation in your body, which may make your back feel worse. Plus, these foods don’t give your muscles and bones the nutrients they need.
Tip: Choose lean proteins, whole grains, fruits, and vegetables. Foods rich in calcium, vitamin D, and healthy fats like avocado and salmon help build strong bones and soft tissue that support your spine.
Sleeping on the Wrong Mattress
Your mattress might be doing your back more harm than good. A mattress that’s too soft or too firm can throw off the alignment of your spine while you sleep. This can lead to soreness when you wake up.
Tip: Your mattress should support your back’s natural curve. Try adding a rolled towel under your knees if you sleep on your back, or between your legs if you sleep on your side. If you’re not sure if your mattress is right for you, try sleeping on it on the floor for a night or two to see if a firmer surface helps.
Sleeping on Your Belly
Sleeping on your stomach is one of the worst positions for your back and neck. It forces your head to one side and flattens the curve in your lower back, which can cause pain and stiffness.
Tip: If you can, switch to your side or back. If you really can’t break the habit, use a soft pillow—or no pillow at all—under your head to reduce neck strain.
Sitting Too Long
Your back isn’t built to sit for hours at a time. Sitting puts pressure on the spine and can lead to tightness in your lower back and hips. Slouching makes it even worse.
Tip: Even if you have a great chair, get up every 30 minutes and stretch. Walk around, roll your shoulders, or do a few standing leg swings to keep your joints loose and your blood flowing.
Skipping Exercise
Not moving enough is one of the biggest causes of back pain. Your spine needs support from strong core muscles—especially your abs and lower back. Without them, your back has to work harder.
Tip: Do gentle exercises like walking, swimming, or biking. Activities like yoga and core training help strengthen the muscles that support your back. Make exercise a daily habit, not just a weekend event.
Smoking
Smoking isn’t just bad for your lungs—it’s terrible for your back. It reduces blood flow to your spine, which can cause your spinal discs to break down faster. It also weakens your bones and can make healing slower.
Tip: If you smoke, quitting can greatly improve your overall health and reduce your risk of chronic back pain. Talk to your doctor about ways to quit that work for you.
Gaining Too Much Weight
Extra weight—especially around your belly—puts extra stress on your spine. It can pull your pelvis forward, change your posture, and make back pain worse.
Tip: Eat slowly and mindfully to avoid overeating. Choose nutrient-dense meals that fill you up without the extra calories. Even a small weight loss can take pressure off your back and improve how you feel.
Carrying Heavy Bags
Carrying a heavy purse or backpack on one shoulder can cause muscle imbalance and strain your spine. Over time, this can lead to long-term pain and poor posture.
Tip: Use both shoulder straps if you’re wearing a backpack, and make sure the bag doesn’t weigh more than 10–20% of your body weight. If you carry a purse, try switching sides often or using a crossbody style.
Riding the Wrong Bike
If your bike isn’t the right fit for your body, it can cause back pain. Leaning too far forward, having the seat too high or too low, or riding too long without a break can all stress your spine.
Tip: Make sure your bike fits your body. Your knees should be slightly bent at the bottom of each pedal stroke, and you shouldn’t have to reach too far forward to grab the handlebars. A physical therapist can help you with adjustments if needed.
Wearing High Heels
High heels might look great, but they’re not great for your back. They shift your weight forward, which forces your lower back to arch more than it should. Over time, this can lead to pain and poor alignment.
Tip: Save the heels for special occasions and wear supportive shoes most of the time. Doing calf and foot stretches can also help protect your back.
Doing Sit-Ups the Wrong Way
Old-school sit-ups that force your spine flat against the floor can strain your lower back. If your hip flexors do all the work, they can pull on your spine and cause pain.
Tip: Try planks instead. They’re easier on your back and still strengthen your core. If you want to do sit-ups, keep your movements slow and controlled, and never yank your neck or lower back.
Final Thoughts
Many causes of back pain come from everyday habits—how you sit, sleep, move, and eat. The good news? Once you recognize what’s causing the strain, you can make small changes to feel better.
Start by being more aware of how your body feels during the day. Are you sitting too long? Is your mattress uncomfortable? Do your shoes hurt your posture? By paying attention and taking care of your body, you can protect your back and prevent pain before it starts.