Obstructive sleep apnea (OSA)
Obstructive sleep apnea is the most common sleep-related breathing disorder. It happens when the airway repeatedly collapses during sleep, blocking airflow and reducing oxygen levels — often without the person fully realizing it.
Q: What is obstructive sleep apnea?
It is a condition where the throat muscles relax too much during sleep, causing the airway to partially or completely close and stopping breathing for short periods.
Q: How many times can breathing stop per night?
In moderate to severe cases, breathing can stop dozens to hundreds of times per night.
Q: Why don’t I wake up if I stop breathing?
Your brain briefly wakes you just enough to reopen the airway, but not enough for you to remember it in the morning.
Q: Is loud snoring a sign of sleep apnea?
Yes, especially if it is combined with choking sounds, gasping, or pauses in breathing.
Q: Can sleep apnea make me tired even after 8 hours of sleep?
Yes, because your sleep is constantly interrupted, preventing deep restorative stages.
Q: Who is at higher risk?
People who are overweight, have a thick neck, family history, high blood pressure, or are over 40 have increased risk — but it can affect anyone.
Q: Is obstructive sleep apnea dangerous?
Untreated OSA increases the risk of high blood pressure, heart disease, stroke, diabetes, and cognitive decline.
Q: Can it be treated?
Yes — treatments include CPAP therapy, oral appliances, weight loss, positional therapy, and sometimes surgery.