especially after minimal effort. First, when the kidneys are not working properly, extra fluid in the body flows into the lungs. Second, anemia deprives your body of oxygen, which causes breathlessness.
Warning: Breathing difficulties can be caused by a variety of conditions, including renal failure, asthma, lung cancer, and heart failure. You should see your doctor right away if you realize that you are frequently out of breath after exerting very little effort.
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