Waking up tired despite full sleep may signal nocturnal bradycardia—a slow heart rate at night. Learn symptoms, causes, warning signs and when to seek treatment. (Pic credit: Pexels)
Lifestyle
M
Moneycontrol20-01-2026, 07:02

Morning Fatigue? Your Night Heart Rate Might Be the Culprit

  • Persistent morning fatigue, dizziness, and mental fog can signal nocturnal bradycardia, a slow heart rate during sleep.
  • Nocturnal bradycardia occurs when heart rate drops below 40 beats per minute during sleep, restricting blood and oxygen flow to organs.
  • Causes include electrical conduction problems, medication effects, untreated sleep apnea, or underlying heart disease.
  • Early identification through ECGs, Holter monitoring, or sleep studies is crucial for effective treatment.
  • Treatment options range from addressing underlying causes like sleep apnea to discontinuing certain medications, or a pacemaker in severe cases.

Why It Matters: Unexplained morning fatigue could be due to nocturnal bradycardia; monitor your night heart rate for early detection.

More like this

Loading more articles...