What causes a slow metabolism in women over forty?

What causes a slow metabolism in women over forty?

1. Introduction: Metabolic Changes in the Fifth Decade A slow metabolism in women over forty is primarily driven by the age-related loss of metabolically active muscle tissue, known as sarcopenia, and the profound hormonal fluctuations associated with perimenopause. Decreasing estrogen levels alter fat distribution and cellular energy expenditure, while concurrent changes in thyroid function and … Read more