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Writer's pictureDr. Jackson

How Hormone Fluctuations Impact Our Brains


Menopause marks a transformative phase in a woman’s life, but it can also bring a host of unexpected mood shifts. If you've ever wondered why feelings of sadness, anxiety, or even heightened irritability can arise during this time, you're not alone. As we delve into the connection between menopause and mood disorders, you’ll see how hormonal changes affect brain chemistry and how these shifts might influence our emotions.


Hormonal Shifts and Mood

The hallmark of menopause is a decline in estrogen and progesterone levels, but these hormones play a significant role beyond reproductive health. They impact neurotransmitters in the brain that help regulate mood, making this time of life a period of heightened vulnerability to mood disorders. In fact, studies suggest that rates of depression and anxiety tend to increase as women approach menopause and remain elevated throughout the postmenopausal period.


Hormone Imbalance

Common Mood Symptoms in Menopause

The emotional changes associated with menopause can range from sadness and irritability to sleep disruptions, appetite shifts, and heightened anxiety. While some mood swings are part of normal hormonal fluctuation, these symptoms can become persistent and severe for some women, significantly impacting their daily lives.


The Biological Mechanisms: Why Do Hormones Matter So Much?

  1. Estrogen’s Impact on Neurotransmitters:  Estrogen affects several key neurotransmitters that control mood, attention, and stress response:


    • Serotonin: Often known as the "feel-good" neurotransmitter, serotonin influences mood stability and general well-being. Estrogen helps boost serotonin production and prevents its rapid breakdown, helping to maintain a positive mood.

    • Dopamine and Norepinephrine: These neurotransmitters are essential for motivation and pleasure. Estrogen supports their production and function, improving focus, drive, and mood balance.

    • GABA: Known for its calming effects, GABA reduces nervous excitability, promoting relaxation. Estrogen increases GABA receptor availability, helping to keep anxiety levels in check.


  2. The HPA Axis and Stress:  Estrogen also regulates the hypothalamic-pituitary-adrenal (HPA) axis, which controls our stress hormone, cortisol. 


    • During menopause, when estrogen levels fall, the HPA axis may become hyperactive. 

    • This imbalance can lead to an exaggerated cortisol response to stress, causing seemingly minor issues to feel overwhelming.


  3. Neuroplasticity and Brain Function: Estrogen also plays a role in neuroplasticity and neurogenesis, or the brain’s ability to form new connections. 


    • As estrogen declines, so does our brain’s capacity to create and retain memories, leading to a phenomenon often referred to as “brain fog.”

    • Reduced estrogen levels correlate with decreased synaptic density and neurogenesis, impacting memory and learning.


  4. Neuroinflammation and Oxidative Stress: Estrogen has anti-inflammatory and antioxidant effects in the brain, helping protect against nerve damage. 


    • When estrogen levels fall, the brain is more vulnerable to oxidative stress and neuroinflammation, potentially worsening mood disorders or preexisting psychiatric conditions.

      Hormone balance

Psychosocial and Risk Factors

Beyond biology, life events during midlife can amplify mood disturbances. Common stressors at this stage—children leaving home, relationship shifts, and societal perceptions about aging—add pressure. Additionally, women with a history of depression or those experiencing intense menopausal symptoms, like hot flashes or sleep disruptions, are at higher risk for mood disorders.


Menopause and Dementia: Is There a Connection?

Concerns about cognitive health and dementia risk also increase during menopause. While research on hormone replacement therapy (HRT) and dementia prevention is ongoing, some studies suggest that women who start HRT early in menopause may have a lower risk of dementia. Estrogen has been shown to protect neurons from beta-amyloid plaque accumulation, a key factor in Alzheimer’s disease.


Treatment Options for Menopausal Mood Disorders

For managing mood disorders during menopause, there are several treatment options:


  • Hormone Replacement Therapy (HRT): HRT is thought to address mood issues by replacing lost estrogen, potentially protecting the brain’s neurotransmitter balance. Unlike traditional antidepressants, HRT targets the root hormonal changes that contribute to mood symptoms, offering a more holistic approach.

  • Antidepressants (SSRIs/SNRIs): These medications help increase serotonin levels in the brain, alleviating mood symptoms. However, they come with side effects, including sleep disturbances, weight gain, and sexual dysfunction, which can sometimes worsen menopausal symptoms.

  • Lifestyle Modifications: Activities like exercise, meditation, and stress management can help regulate the HPA axis. Practices such as yoga, acupuncture, and spending time in nature are proven to support a healthier stress response.


The Importance of a Personalized Approach

Menopausal mood disorders stem from a complex interaction of biological, psychological, and social factors. A tailored approach—considering each woman’s physical health, life stage, and support systems—can help ensure that treatments are effective and comprehensive.


Looking Forward: The Role of Research

Further research on the long-term effects of HRT on mood disorders and cognitive health is essential. Well-designed studies that follow women over decades can give us a clearer understanding of how HRT impacts mood and dementia risk, helping guide treatment decisions for future generations.


Mood changes during menopause are real and impact millions of women. Knowing that there are biological and therapeutic answers can be a source of comfort and empowerment as you navigate this stage of life. And remember, you’re not alone—many women are going through the same journey, and support is always available.

Listen to Dr Jackson go into detail about this topic!  You can hear the full episode on her podcast, Ageless and Outrageous.  Be sure to like and follow so you don’t miss an episode!


SCHEDULE YOUR HORMONE CONSULTATION AT FOUNDATIONS AT MAITLAND



At Foundations at Maitland, in Maitland FL, we offer a full range of non-surgical treatments to help you reach your aesthetic, wellness, and sexual goals.  Our providers are highly trained and experienced.  We are led by our double-board certified surgeon, Dr Kristin Jackson, who has personally developed all treatment protocols and is closely involved in the day-to-day operations of our medical spa.  With her extensive training in all non-surgical cosmetic treatments as well as over 20 years of surgical experience, Dr Jackson is uniquely qualified to ensure our medical spa provides you with the highest standards of quality care and safety.


If you are looking for hormone replacement doctors or anti-aging doctors near you, we can help!  Contact us today for your complimentary consultation!


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