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John Seivert
- Aug 13, 2018
- 3 min
Does Carrying Heavy Backpacks Cause Back Pain?
...many organizations... have recommended limits on backpack weights for children.
28 views
John Seivert
- Mar 26, 2018
- 4 min
Is Bending Over Repeatedly Bad for Your Back?
“If your spine is stiff at 30 you are old. If it is flexible at 60 you are young”.
1,868 views
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