What causes low energy in the morning?
Low morning energy commonly reflects poor sleep quality, blunted cortisol awakening response, low testosterone, thyroid dysfunction, anemia, or metabolic dysregulation.
Full answer
Morning energy depends on a healthy cortisol awakening response, adequate sleep architecture, hormone status, hydration, and metabolic stability. Common contributors to low morning energy include obstructive sleep apnea, insufficient sleep duration, blunted cortisol AM, low testosterone, hypothyroidism, anemia (ferritin, B12), and fasting hypoglycemia. Within oMeds review, the workup combines a hormone panel with thyroid status, iron studies, B12, fasting glucose/insulin, and a sleep history. Treatment targets the dominant driver, not the symptom.
Educational. Not a substitute for individualized provider review.
- Cortisol AM — Primary source · oMeds
- Reviewed by Dr. Laura Purdy, MD, MBA · Clinical Director, oMeds · Last reviewed 2026-05-29