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The average bag weighed between three and five pounds, and while that may not sound like a lot, experts said it doesn't take much to cause problems.
"You lift a five pound bag of sugar, and that's heavy, and so sure those things can cause a lot of stress, and it can cause a lot of strain on a body," Collinson said.
Collinson said when lifting something the body automatically tries to balance the weight.
"If you lifted a heavy suitcase the first thing that you do would be lean over to one side," he said.
FOX21's Abbie Burke took her purse to the doctor to find out exactly what's behind the pain.
"As you look here you can definitely see that there is this slumped kind of posture," Dr. Melissa Harlow, of Peak Balance Chiropractic , said.
Harlow said the muscles try to pull the body straight, which can cause pain all the way down the back.
"You have some tug-a-war going on in that mid-back area, and then you can just imagine being unlevel and trying to level yourself out," Harlow said.
Source: KXRM