Dr. Richard Isaacson was featured by CNN discussing new research linking untreated sleep apnea and reduced deep (slow-wave) sleep to changes in the brain associated with a higher risk of cognitive decline, stroke, and Alzheimer’s disease. The study found that people with severe sleep apnea who spent less time in restorative deep sleep had greater white matter damage, underscoring the importance of healthy sleep for long-term brain health.

Commenting on the findings, Dr. Isaacson explained that deep sleep is when the brain performs critical restorative functions, including clearing waste products such as beta-amyloid, a hallmark protein associated with Alzheimer’s disease. He also emphasized that the study shows an association—not proof of cause and effect—and highlighted the importance of diagnosing and treating sleep apnea as part of a comprehensive strategy to support brain health and reduce dementia risk.

Read the full CNN article to learn how treating sleep apnea and improving deep sleep may help protect brain health and support Alzheimer’s prevention.