shoulders down, and makes a flight of stairs feel like a punishment.
One reason is anemia. Damaged kidneys stop making enough of the hormone that tells the bone marrow to produce red blood cells, so oxygen delivery drops and every tissue runs on fumes.
It is like trying to power a house with a generator that keeps sputtering. The lights stay on, but barely, and everything feels dim, slow, and expensive.
Some people notice brain fog before anything else. They lose their edge, forget words, feel cloudy in meetings, or
