Fasting periods trigger a shift in the body's energy utilization, leading to increased autophagy and a decrease in pro-growth signaling pathways like the mTOR (mammalian target of rapamycin) pathway. Since many cancers are driven by hyperactive mTOR signaling, the inhibitory effects of fasting can slow tumor proliferation. This systemic change in the hormonal and nutrient environment ... https://www.beatcancerfoundation.org/