She d.ied in his sleep from doing this: I implore you, don’t do it. It causes heart attacks and strokes.

Adrenaline surge

Rapid heart rate

Constant micro-awakenings

Hundreds of these episodes can occur in a single night. It’s like subjecting your heart to an extreme marathon without rest.

Sleeping on your back makes everything worse. Gravity pushes the tongue and palate backward, further narrowing the airway and multiplying the risk.

What to do