This document discusses the Efruzher cancer theory and the role of the T3 receptor in carcinogenesis. It explains that cytokines and growth factors can have proliferative or differentiative effects on cells depending on dosage levels, with high doses being proliferative and low/normal doses causing differentiation. The T3 receptor is located in the nucleus and mitochondria, and energy production is an important factor influencing proliferation and differentiation. Cancer cells continuously take high levels of ligand signaling, exhibiting proliferative behavior through aerobic glycolysis rather than mitochondrial oxidative phosphorylation, resulting in broken or low energy generation and unsuccessful transcription expression.