Living donors are individuals who choose to donate an organ or a part of an organ while they are still alive. This can include organs like a kidney or a portion of the liver. Living donation is often possible because humans can function well with one kidney or with a portion of the liver, which can regenerate over time. The process of living donation typically involves thorough medical evaluations to ensure the donor's health and compatibility with the recipient. Living donors can help save lives and reduce waiting times for organ transplants, benefiting both the recipient and the healthcare system.