Fatigue after cancer treatment is one of the most common and frustrating challenges survivors face during recovery—and rest alone often isn’t enough to fix it. Cancer-related fatigue is one of the most common and persistent side effects after treatment. And unlike normal tiredness, it doesn’t always go away with rest. Many survivors are surprised by how long it lingers, and even more frustrated when they’re told they “should” be feeling better by now. The truth is: your body