Researchers have found that a specific body profile—higher muscle mass combined with a lower visceral fat to muscle ratio—tracks with a younger brain age, according to a study being presented next week at the annual meeting of the Radiological Society of North America (RSNA). Visceral fat is hidden deep within the abdominal cavity, surrounding vital internal organs.

Current antibody-based treatments for Alzheimer’s disease remain costly and carry significant side effects, highlighting the need for safer alternatives. In a new study, researchers from Kindai University report that oral administration of arginine suppresses amyloid-β aggregation and related neurotoxicity in fruit fly and mouse models of Alzheimer’s disease. Their findings demonstrate arginine’s potential as a safe, inexpensive, and readily available repositioned drug candidate for preventing or mitigating Alzheimer’s pathology.