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Research shows our bodies go through rapid changes in our 40s and our 60s

www.nbcnews.com Why does everything hurt? Research shows that our bodies go through rapid changes at these ages

These metabolic shifts may be causing significant differences in cardiovascular health and immune function.

Why does everything hurt? Research shows that our bodies go through rapid changes at these ages

These metabolic shifts may be causing significant differences in cardiovascular health and immune function.

For many people, reaching their mid-40s may bring unpleasant signs the body isn’t working as well as it once did. Injuries seem to happen more frequently. Muscles may feel weaker.

A new study, published Wednesday in Nature Aging, shows what may be causing the physical decline. Researchers have found that molecules and microorganisms both inside and outside our bodies are going through dramatic changes, first at about age 44 and then again when we hit 60. Those alterations may be causing significant differences in cardiovascular health and immune function.

The findings come from Stanford scientists who analyzed blood and other biological samples of 108 volunteers ages 25 to 75, who continued to donate samples for several years.

“While it’s obvious that you’re aging throughout your entire life, there are two big periods where things really shift,” said the study’s senior author, Michael Snyder, a professor of genetics and director of the Center for Genomics and Personalized Medicine at Stanford Medicine. For example, “there’s a big shift in the metabolism of lipids when people are in their 40s and in the metabolism of carbohydrates when people are in their 60s.”

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Research shows our bodies go through rapid changes in our 40s and our 60s

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