Why do I get tired during chemotherapy?

Fatigue during chemotherapy is common due to multiple factors. Chemo attacks rapidly dividing cells, including cancer cells, but also healthy cells like red and white blood cells. This reduction in blood cells can lead to anemia and weakened immunity, contributing to exhaustion. Additionally, the cancer itself often causes fatigue. The body’s effort to fight cancer and repair damage from treatment further depletes energy reserves, resulting in persistent tiredness.