Study: Building muscle mass helps delay cognitive decline beyond the value of exercise itself

A new reason to build muscle: brain health (The Globe and Mail): … a recent study from researchers at McGill University, published in the journal JAMA Network Open, offers a new reason for continuing to work on building muscle: It’s good for your brain, not just your biceps. Greater muscle mass, the results suggest, helps ward off cognitive decline in older adults beyond what you’d expect based on their exercise levels alone. The findings are drawn from more than 8,000 older adults in the Canadian Longitudinal Study on Aging, with an average age of 73. They underwent a series of baseline assessments that included an X‑ray measurement of their muscle mass, a battery of 10 cognitive tests and questionnaires about their exercise habits and other health characteristics. The cognitive tests were repeated three years later… Teasing out exactly how muscle helps the brain remains a challenge. There are plenty of indirect links: Those with more muscle are generally more active, which may help maintain the flow of oxygen-rich blood to the brain, for example. But Dr. Chevalier’s results suggest there may be more direct mechanisms too. One possibility is the role of myokines, a set of hormone-like molecules produced by muscle cells that can travel to the brain and influence mood, learning and other cognitive functions. Greater muscle mass may also help keep blood glucose levels in check, protecting the brain from damage. The Study: Association of Low Muscle Mass With Cognitiv...
Source: SharpBrains - Category: Neuroscience Authors: Tags: Brain/ Mental Health brain health building muscle cognitive cognitive decline cognitive-domains Cognitive-tests exercise muscle mass myokines older-adults ward off cognitive decline Source Type: blogs