Cushing syndrome affects the adrenal gland, which in return stimulates aldosterone. Aldosterone is responsible for salt and water retention. In Cushing syndrome cortisol is high which also blocks the excretion of sodium from the body.
no, because Cushings disease is when your adrenal glands secrete to much cortosol. Addison's disease is when your adrenal glands sucrete to little cortisol.
Arthritis (literally joint-inflammation) is the collective name for diseases causing damage to joints. The most well known are probably rheumatoid arthritis and gout (gouty arthritis).
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