3.6K views · 85 reactions | Your metabolism changes as you get older. You burn fewer calories, break down foods differently, and start to lose lean muscle. Middle-age spread can quickly become middle-age sprawl and carrying extra pounds can be harmful to your health. Learn how to combat age-related changes: https://newsinhealth.nih.gov/2015/07/minding-your-metabolism #NIHhealthy2020 | National Institutes of Health (NIH) | Facebook