I WONDER - What Is Kidney Dialysis?

The video explains how scientists have developed a machine that mimics the function of kidneys, known as dialysis. This machine is crucial for individuals with kidney diseases, as it helps filter blood and remove waste, similar to a natural kidney. The process of dialysis is likened to having a robot kidney, providing significant aid to those in need.

In what way can the machine be described metaphorically?

How does dialysis help people with kidney diseases?