Swelling is often most visible in the feet and ankles. Pregnancy can cause edema in the legs as the uterus puts pressure on the vena cava, a major blood vessel that returns blood to the heart from the legs. Fluid retention during pregnancy also can be caused by a more serious condition called preeclampsia. Low protein levels in the blood caused by malnutrition, kidney and liver disease can cause edema. The proteins help to hold salt and water inside the blood vessels so fluid does not leak out into the tissues.
Tinky Winky (played by Dave Thompson, Mark Heenehan, and Simon Shelton) is the first Teletubby. He is the largest of the Teletubbies, is covered in bright purple terrycloth, and has a triangular antenna on his head.
Po is the fourth Teletubby. She lives with the other Teletubbies in the Superdome. Po is a rosy red Teletubby whom has an antenna that is shaped like a circle used for blowing bubbles. She is the smallest of the Teletubbies. Po is 6 feet tall and she is played by Pui Fan Lee in the original series (Rachelle Beinart in the new series), who is a British actress of Chinese descent and is also a popular presenter, which is why Po can speak in English and Cantonese. Fi dit! is Cantonese for Faster!.