09/08/2026
Perimenopause is more than a change in your menstrual cycle. It is a physiological transition that can affect your brain, heart, sleep, mood, energy, and ultimately how you feel and perform every day.
Estrogen doesn’t simply disappear overnight. During perimenopause, hormone levels can fluctuate significantly, which is one reason symptoms can feel unpredictable, from brain fog and difficulty concentrating to disrupted sleep, anxiety, changes in your cycle, and heart palpitations.
And while these symptoms can be associated with perimenopause, we should never assume that every symptom is hormonal.
Thyroid dysfunction, iron deficiency, anemia, nutritional deficiencies, and other medical conditions may produce similar symptoms and should be appropriately evaluated by a healthcare professional.
This is also why exercise during this stage of life should be more intentional than simply “working out.”
At The Foothills Gym, we combine professional credentials, academic knowledge, and years of hands-on experience working with adults over 40 to create evidence-informed training focused on strength, muscle, bone health, cardiovascular fitness, and long-term function.
Menopause changes your physiology. Your training should evolve with it.
Part 2: Hair, libido, belly fat, muscle, and bone health.