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.
A very common place to see edema is in the feet, ankles and lower legs. Edema is fluid build up which may occur in any part of your body. However, due of the effects of gravity, the fluid more commonly appears as painless swelling in the lower legs.ommon Causes of Peripheral Edema. As a person gets on in years, he or she is more likely to have a gathering of edema fluid in their lower legs when they stand or sit too long. They may also see a tightness and swelling the shoes and socks are removed at the end of the day.