Sleeping on Your Back May Increase Alzheimer’s Risk, Study Finds

A study presented at the 2024 International Alzheimer’s Association Conference has revealed a concerning link between sleeping on the back and an increased risk of developing neurodegenerative diseases such as Alzheimer’s. Although back sleeping is often considered healthy in certain cases, the study found that this position may harm brain function and interfere with the brain’s natural detoxification processes.

Researchers tracked participants with cognitive impairments and compared them to a healthy control group. Using in-home monitoring devices, they observed participants’ sleep patterns and discovered that prolonged time spent sleeping on the back may reduce venous drainage from the brain, increasing the risk of harmful substance buildup.

Dr. Sandra Benizri, a neurologist at Assuta Medical Centers, explained: “Sleep allows the brain to clear out toxins. When someone sleeps on their back, venous drainage can be impaired, potentially leading to reduced brain function and a higher risk of neurodegenerative diseases like Alzheimer’s.”

Experts now recommend avoiding this sleeping position, particularly for individuals at elevated risk. “Side-sleeping is the preferred option for maintaining long-term brain health,” Dr. Benizri concluded.