This simple tweak to how you sit while driving can take away back and shoulder pain

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WINSTON-SALEM, N.C. -- For a year and a half, Marianne LeSage's right arm ached, badly.

"Every time I wanted to do something with my right arm, it was painful, I couldn't do anything," said LeSage. "They were thinking it was a pinched nerve. X-rays showed that my right shoulder was twisted and lifted."

According to Novant Health Physical Therapist Keith Herzberger, her problem wasn't from a significant injury, but surprisingly, in large part because of how she sat while she drove during her half hour commute each day.

"It makes such a difference with so many of my patients," said Herzberger. "People come in with back pain, shoulder pain, one of the first things I do is look at how they're sitting in the car."

Herzberger says you should have the seat pitched forward, enough so your head actually rests on the headrest. Then, drive with two hands, not one. Your back should be snug against the seat, with a small arch at the bottom of your back that's supported by lumbar support, a rolled up towel or even a small pillow.

"You want your arms straight out, a little bend in the elbows. If you're using one arm, you're actually twisting in the shoulder and neck," he said.

Finally, adjust your rearview mirror when you're in the correct posture. That way, when you do slouch, you won't be able to see in the mirror and you'll know you need to adjust.

LeSage says after just a couple of days, she could tell a big difference. "The seat is holding my back and my head now and it didn't before. It's surprising how big a difference something that small can make."