The Hidden Risk of Sleeping Too Little
In this commentary, Gary Brecka highlights a scientific study that found individuals who consistently slept six hours or less per night during their 50s faced a 30% higher risk of developing dementia later in life compared to those who slept at least seven hours. The increased risk persisted even after accounting for depression, cardiovascular disease, and other health factors, indicating the association is directly tied to sleep duration. The study also tracked participants whose sleep patterns changed over time; those who shifted from normal (≈7 hours) to short sleep (≤6 hours) exhibited an even greater dementia risk. Brecka emphasizes that this evidence shows midlife sleep reduction, not just genetics or chronic disease, can independently raise the likelihood of dementia decades later.
