One in two people in the United States, just over half of the population, is affected by a neurological disease or disorder, according to a new systematic analysis by the American Academy of Neurology and the Institute for Health Metrics and Evaluation published on November 24, 2025, in the journal JAMA Neurology. The nervous system is the body’s command center, directing how you move, think and feel. It includes the brain, spinal cord and nerves.

About The Study: This cross-sectional study of the Global Burden of Disease 2021 study data found that, among the U.S. population of 332.7 million, disorders affecting nervous system health impacted 180.3 million U.S. individuals and were the top cause of disability. Conditions with the greatest collective disability were stroke, Alzheimer disease and other dementias, diabetic neuropathy, and migraine. The U.S. should prioritize efforts to combat these conditions with development and implementation of new and effective prevention strategies, therapeutics, and focused rehabilitation.

About The Study: In this cohort of young adults, reducing social media use for 1 week was associated with reductions in symptoms of depression, anxiety, and insomnia; however, the durability of these therapeutic outcomes and their associations with behavior warrant further study, particularly in more diverse populations. 

About The Study: Glucagon-like peptide 1 receptor agonists (GLP-1RAs) are increasingly used for postpartum weight loss since the introduction of semaglutide for weight loss in late 2022. Most users were overweight prior to pregnancy and only 23% had a documented diabetes diagnosis, suggesting that the primary indication for use was weight reduction.

New research examining electronic health records of millions of U.S. military veterans dating back two decades reveals that people with untreated obstructive sleep apnea have a higher risk of developing Parkinson’s disease. However, they can significantly reduce the risk by improving the quality of their sleep by using continuous positive airway pressure, or CPAP.