Answer:
Ganglion cysts are lumps that most commonly develop in the wrist. They're typically round or oval and are filled with a jelly-like fluid. Ganglion cysts are noncancerous lumps that most commonly develop along the tendons or joints of your wrists or hands. They also may occur in the ankles and feet.
Because it allows them to breathe and function.
The answer would be Sprots Medicine
Secondary consumer is the answer.