When fatigue leaves you drained, depleted, and dumbfounded

Fatigue affects up to three-quarters of older adults with chronic conditions. Some causes are obvious, while others are less well recognized. They include sleep disorders, anemia, poor diet, thyroid problems, mood disorders, and medication use. People with prolonged, unexplained fatigue should see a doctor, who will perform a physical exam, ask about medical history, and in some cases perform blood or other tests. People can boost energy levels by exercising more, optimizing diet, using caffeine strategically, and limiting alcohol consumption.