Researchers have found that irisin-based medicines could potentially be used in the treatment of Alzheimer’s disease. Irisin is a hormone produced by muscles during exercise, and it has been shown to reduce amyloid beta pathology, a key characteristic of Alzheimer’s disease. The study also identified the receptor that irisin binds to on brain cells, triggering the production of an enzyme that degrades amyloid beta. These findings suggest that irisin could be a target for future therapies for Alzheimer’s disease.