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Adjust Your Workout to Your Age – What Changes After 40 for Women

Published January 23, 2026, 20:13
Adjust Your Workout to Your Age – What Changes After 40 for Women

High-intensity exercise is a powerful tool for improving fitness. However, in women over 40, its effectiveness largely depends on the hormonal and neuroendocrine environment in which it is applied. Physiological aging, combined with the hormonal changes of perimenopause and menopause, significantly alters how the body responds to intense training stimuli. A gradual decrease and greater fluctuation in estrogen and progesterone affect metabolism, muscle protein synthesis, inflammatory response, and stress resilience. Additionally, decreased insulin sensitivity and increased cortisol can lead to fluid retention and fat accumulation. The nervous system also becomes less resistant to intense stress, causing fatigue and sleep disturbances. Therefore, the training strategy must be individualized, emphasizing proper intensity and frequency regulation, selecting exercises that support the nervous system, prioritizing recovery, and adapting to hormonal changes. Training should be aligned with the biology of the female body after 40 to be effective and sustainable.