This document discusses a cancer theory related to cell differentiation and proliferation. It proposes that high amounts of cytokines and growth factors constantly stimulate cancer cells to divide in an immature state by cloning themselves, similarly to how ligands affect cells. This creates metabolic stress for the cancer cells as they do not have enough time, energy, or resources to properly develop, synthesize, and store lipids and proteins. Low or normal amounts of cytokines and growth factors, however, allow cells to differentiate in a step-wise manner and repair any problems that occur.