A YouTube video by Dr. Vinay Samuel Gaikwad explains how cancer starts with mutations in cells, leading them to “grow and divide uncontrollably.” These mutated cells may form tumors, which can be *benign* (harmless) or *malignant* (cancerous and able to spread). The speaker warns that although the cause of these mutations is often unknown, “certain risk factors can increase the likelihood.”

The American Cancer Society expects 2 million new cancer cases and over 618,000 deaths in the U.S. in 2025, despite declining overall cancer mortality.

Another simulation by Dr. Paulien Moyaert showed how cancer spreads and causes organ failure. If it affects the digestive tract, patients may struggle with food absorption or elimination, leading to dangerous blockages. Pancreatic cancer is shown to cause the organ to “digest itself,” making it one of the most painful and deadly forms.

Cancer also weakens the immune system. “Chemotherapy suppresses bone marrow,” reducing white blood cells, platelets, and causing anemia. If cancer grows in the bone marrow, “there will eventually be inadequate healthy bone marrow to make blood cells.”

The video also explained *cachexia*—a wasting condition caused by cancer toxins. “It affects 50% of patients and directly causes 30% of deaths,” especially in advanced cases.