Exercise and dementia

Hints at potential treatments for age-related dementia and memory loss

By Jonathan D. Grinstein on october 16, 2108

Credit: Getty Images
For the 50 million individuals worldwide ailing from Alzheimer’s disease, the announcements by pharmaceutical giants earlier this year that they will end research on therapeutics were devastating. The news is even more devastating considering projections that 100 million more people will be diagnosed with Alzheimer’s disease across the globe by 2050, all potentially without a medical means to better their quality of life.As it happens, though, the pursuit of a therapeutic has been given a lifeline. New research shows that physical exercise can “clean up” the hostile environments in the brains of Alzheimer’s mice, allowing new nerve cells in the hippocampus, the brain structure involved in memory and learning, to enable cognitive improvements, such as learning and memory. These findings imply that pharmacological agents that enrich the hippocampal environment to boost cell growth and survival might be effective to recuperate brain health and function in human Alzheimer’s disease patients./.../