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Published on: 7/14/2026

What are the symptoms of central sleep apnea and how is it different from obstructive sleep apnea?

Central sleep apnea occurs when the brain fails to send proper signals to the muscles that control breathing during sleep. In contrast, obstructive sleep apnea happens when the airway becomes physically blocked, often by relaxed throat tissues. Both conditions share common symptoms, including pauses in breathing, frequent nighttime awakenings, gasping for air, morning headaches, and persistent daytime fatigue.

Understanding which type you may have is critical, because treatments differ significantly. If you're experiencing any of these symptoms, don't wait to find answers. Take a free, instant, online symptom check to better understand what may be causing your sleep issues and get clear guidance on your next steps.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Central sleep apnea (CSA) and obstructive sleep apnea (OSA) both cause you to stop breathing while you sleep, but they happen for different reasons.

Central Sleep Apnea (CSA)

  • Cause: The brain doesn't send the right signals to the muscles that control breathing.
  • Symptoms: People with CSA may experience pauses in breathing, frequent awakenings during the night, and excessive daytime sleepiness. These symptoms happen because the brain is not telling the body to breathe regularly while asleep.

Obstructive Sleep Apnea (OSA)

  • Cause: The airway is blocked, often by the tongue or other soft tissues in the throat.
  • Symptoms: OSA symptoms also include pauses in breathing and waking up often, but they are due to a physical blockage in the airway.

In both conditions, the person might feel very tired during the day because their sleep is interrupted. However, the key difference is that CSA is a problem with the brain's signals, while OSA is a problem with a blocked airway. If you're experiencing any of these symptoms, you can start by taking a free symptom checker quiz to better understand what might be causing your sleep issues, then talk to a doctor who can provide a proper diagnosis and treatment plan.

(References)

  • Eckert DJ, Jordan AS, Merchia P, & Malhotra A. (2007). Central sleep apnea: Pathophysiology and treatment. Chest, 17296668.

  • Malhotra A, & Owens RL. (2010). What is central sleep apnea?. Respiratory care, 20799999.

  • Chowdhuri S, & Badr MS. (2010). Central sleep apnoea. The Indian journal of medical research, 20308740.

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