Quote:
Originally Posted by ilovetv
Knees and other joints wear out with normal usage and physical activity. My father needed and got both knees replaced, and was a manual laborer on his feet and lifting all day long for 50 years. That physical activity (and hereditary thinness) kept him, and still keeps him, skinny as a rail at age 85.
You can't blame all knee replacements on obesity and unrighteous eating.
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My opinion was not meant to be the final word. I just stated off-hand the reasons I could think of. It could be one thing or a combination of all of the above. In your father's case, the manual labor likely was a contributing factor. That would be in the same category as athletic overuse.
If you will go back and read my post I listed arthritis as a cause. Then diet as a contributing factor. There's no doubt that poor diet (especially excess refined sugar) will raise one's risk for inflammation. It's fairly certain it will.