Is cancer a parasite? Cancer isn’t a parasite but it sure acts like one. It steals nutrients and oxygen from healthy cells, builds its own blood supply through VEGF, and hides from the immune system while rewiring metabolism to survive. That’s why drugs like ivermectin, made for parasites, caught scientists’ attention. In lab studies, it seemed to shut down cancer cell energy pathways, but what works in dishes or mice doesn’t always work in people. Even when a drug passes early safety testing, m