[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.
There are many potential causes of foot, leg, and ankle swelling. 1  Being overweight: Excess body mass can decrease blood circulation, causing fluid to build up in the feet, legs, and ankles.  Standing or sitting for long periods: When the muscles are inactive, they canât pump body fluids back up toward the heart.