<unk>  can affect people regardless of sex, race, or age. However, risk factors include: * being male * obesity * age over 40 * large neck circumference (greater than 16–17 inches) * enlarged tonsils or tongue * narrow upper jaw * nasal congestion * allergies * receding chin * gastroesophageal reflux * a family history of<unk>  Alcohol, sedatives and tranquilizers may also promote<unk>  by relaxing throat muscles. People who smoke tobacco have<unk>  at three times the rate of people who have never done so. Central<unk>  is more often associated with any of the following risk factors: * being male * an age above 65 * having heart disorders such as atrial fibrillation or atrial septal defects such as PFO * stroke High blood pressure is very common in people with<unk> .
Sleep apnea
Insomnia
Central sleep apnea
Narcolepsy
Obstructive sleep apnea
Hyperventilation syndrome
Obesity hypoventilation syndrome
Central hypoventilation syndrome