[â¦] Low body temperature is a direct indicator of a poorly functioning metabolism. Metabolism basically refers to how efficiently your body can turn fuel (food) into energy (such as heat). So low body temperature is a good indicator that your metabolism isnât doing so hot (pun intended).
1 Blood clot in the leg: A blood clot is a clump of blood thatâs in a solid state. When a blood clot forms in a vein of the leg, it can impair blood flow, leading to swelling and discomfort.  Injury or infection: An injury or infection affecting the foot, leg, or ankle results in increased blood flow to the area.
Congestive heart failure leads to sodium retention, which causes an accumulation of fluid in the body. In kidney disease, salt and water retention may lead to swelling in the lower legs, the face and eventually the entire body. If you have swollen legs and/or feet for more than two days, see your doctor.