Forgetfulness is easy to dismiss, especially as we get older. But failing kidneys can affect how well blood and oxygen reach the brain, and that can show up as cognitive fog or memory lapses that feel out of character. It's one of the more overlooked symptoms of kidney disease precisely because there are so many other things people assume are to blame. If the forgetfulness feels new or is getting worse alongside other symptoms here, it's worth raising with your doctor.

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