Prof. Qing-Jun Meng from University of Manchester visited RCSI on December 14th to give the second Institutional Seminar Series Lecture Titled “Circadian Rhythms in Health and Disease of the Musculoskeletal System. Prof. Meng has made seminal discoveries on the impact of the clock on cartilage and invertebral disk function and how this leads to diseases of ageing, such as osteoarthritis and lower back pain. He had the audience enthralled for an hour with his rhythmic images of cells glowing with 24-hour rhythms, and his use of Google searches.