I had mild sleep apnea before my gastric bypass weight loss surgery. Sleep apnea is a dangerous sleep disorder characterized by interrupted breathing while asleep. Although I have no knowledge of how many times I may have stopped breathing during the night, persons affected by sleep apnea can stop breathing hundreds of time during the night. This action can compromise the supply of oxygen to the brain.

There are two types of sleep apnea, obstructive sleep apnea and central sleep apnea.

Obstruct...