When you wake up from a breathing pause, the timing matters more than you think. A large review looked at data from over 8,000 adults with obstructive sleep apnea. These patients wore monitors at home to track their sleep. The team focused on when the body wakes up after a pause, not just how many pauses occurred.
For men, every one-second delay in waking up after a pause was linked to a higher risk of dying from any cause. The same delay also raised the risk of dying from heart disease. For women, the delay was linked to higher overall death risk, but not heart disease specifically.
These findings come from looking at past records, so they show connections, not direct causes. The data mostly came from sleep stages where people are not dreaming. This new way of measuring sleep trouble might help doctors see who is at greater risk sooner.