If you're in the middle of the middle, however â not lower or upper-middle class â that would be an income range between $39,764 and $64,582, says Aaron Pacitti, an assistant professor of economics at Siena College in Loudonville, N.Y. Again, it isn't official.
Edema definition and facts. Edema is a swelling, usually of the legs, feet, and/or hands due to the accumulation of excessive fluid in the tissues. The edema that occurs in diseases of the heart, liver, and kidneys is mainly caused by salt retention, which holds the excess fluid in the body.
In women, the monthly menstrual cycle sometimes causes edema, but this does not need treatment. Side effects of medications for hypertension or diabetes may at times cause edema in patients. Congestive heart failure is the most serious condition that causes edema in the chest; it may also cause death. Swellings on the lower legs or around the eyes may be the result of kidney disease.