With busy careers and families, adults in their 30s often have less time to spend on themselves.

Although metabolic rates have started to slow down, people don’t consume fewer calories, so they are stored as fat instead of energy. Beginning at age 25, adults who do not exercise can expect to lose at least a half pound of lean muscle tissue per year.

This is a crucial time to kick your metabolism into high gear with strength training to add lean figure-shaping, calorie burning, and energizing your body through muscle building.

The 40s are usually the decade where the body begins to slip in terms of recovery and functionality.

You may notice that things are starting to hurt at this age, such as achy joints or stiffness. The average body fat percentage at this point for most Americans is above 30%. High body fat is a precursor for many diseases, such as diabetes and heart disease.

You can prevent and reverse a slowing metabolism and weight gain with a proper progressive, infrequent strength training regimen, losing fat and gaining muscle well into your senior years.

After Age 30, Muscle Mass Decreases 3-8% Every Ten Years