Exercise May Help Maintain Hearing

In a new animal-based study, researchers found that aging sedentary mice lost structures important to the auditory system—hair cells and strial capillaries—at a much higher rate than their exercising counterparts. Study co-author Christiaan Leeuwenburgh writes, “Exercise likely releases some growth factors yet to be discovered that maintain capillary density as compared to the control animals who were not exercising… Also, exercise may release other beneficial factors, but can also attenuate and blunt negative factors, such as inflammation.” Journal of Neuroscience, November 2016