It's conjectured that fasting kills (pre)cancerous cells by basically starving them when they fail to downregulate their metabolism under a calorie deficit. Per

It's conjectured that fasting kills (pre)cancerous cells by basically starving them when they fail to downregulate their metabolism under a calorie deficit. Perhaps exercise could have a similar effect in diverting energy from higher-cancer-rate cells (skin, digestive tract linings, endometrium, etc.) to lower-cancer-rate cells (muscle cells)?