(HealthDay News) -- Obstructive sleep apnea commonly occurs when swollen tonsils or adenoids obstruct the airways during sleep.

The condition affects as many as 3 percent of preschool-age children, says the Nemours Foundation.

The foundation mentions these common symptoms of obstructive sleep apnea in children:

  • Snoring, which is usually accompanied by gasping sounds and pauses in breathing.
  • Heavy breathing during sleep.
  • Sleeping restlessly or sleeping in strange positions.
  • Changes in skin color.
  • Sleepiness during the day.