Learn More About Perimenopause

Perimenopause often begins years before menopause and may affect sleep, mood, energy, metabolism, cycles, and overall well-being. During this transition, estrogen and progesterone levels can fluctuate significantly, sometimes leading to symptoms such as anxiety, brain fog, weight gain, night sweats, irritability, low libido, and fatigue. Many women are told their labs are “normal” despite experiencing symptoms. Understanding hormonal transition and identifying contributing factors may help women feel more supported and informed about available treatment options.

Fatigue can result from many underlying factors including hormone imbalance, thyroid dysfunction, iron deficiency, low vitamin levels, chronic stress, poor sleep, insulin resistance, inflammation, or nutrient deficiencies. Women often describe fatigue as feeling “wired but tired,” exhausted despite adequate sleep, or struggling with motivation and mental clarity. Evaluating root contributors to fatigue may provide a more comprehensive understanding of why energy levels have changed.

Anxiety is one of the most common symptoms women experience during perimenopause and hormonal transition. Many women describe suddenly feeling overwhelmed, restless, emotionally reactive, or unable to tolerate stress the way they once could — even if they have never struggled with anxiety before.

Hormonal fluctuations, particularly changes in progesterone and estrogen, can affect neurotransmitters within the brain that influence mood, sleep, and stress response. Progesterone has calming effects on the nervous system, and declining progesterone during perimenopause may contribute to increased anxiety, irritability, and sleep disruption.

Women may experience:

• Racing thoughts

• Feeling “on edge”

• Increased worry or panic

• Heart palpitations

• Difficulty relaxing

• Overstimulation

• Irritability

• Sleep disruption

• Waking during the night with anxiety

• Feeling emotionally overwhelmed

Anxiety during midlife is often multifactorial. In addition to hormones, contributors may include:

• Chronic stress

• Poor sleep quality

• Elevated cortisol

• Blood sugar instability

• Thyroid dysfunction

• Nutrient deficiencies

• Caffeine sensitivity

• Inflammation

• Major life stressors and caregiving demands

Many women notice anxiety worsens before menstrual cycles, during periods of sleep deprivation, or alongside symptoms such as fatigue, brain fog, weight gain, palpitations, or night sweats.

Supportive approaches may include:

• Improving sleep quality

• Stress reduction and nervous system support

• Blood sugar stabilization

• Regular movement and strength training

• Reducing excessive caffeine and alcohol

• Nutrient optimization

• Evaluating hormone and thyroid health

• Counseling, mindfulness, or behavioral support when appropriate

Persistent panic attacks, depression, thoughts of self-harm, chest pain, or severe anxiety symptoms should be evaluated by a healthcare professional.

Many women notice increased abdominal weight gain during their late 30s and 40s, even when their eating habits and activity levels have not changed. Hormonal changes during perimenopause can significantly affect metabolism, body composition, insulin sensitivity, muscle mass, and fat storage.

As estrogen and progesterone fluctuate, the body may become more prone to storing fat around the abdomen rather than the hips and thighs. Declining muscle mass with age can also slow metabolism, making it easier to gain weight and more difficult to lose it.

Several factors may contribute to belly fat after 40, including:

• Hormonal changes during perimenopause

• Insulin resistance

• Elevated cortisol from chronic stress

• Poor sleep quality

• Loss of muscle mass

• Thyroid dysfunction

• Inflammation

• Sedentary lifestyle

• Blood sugar instability

• Highly processed foods and excess alcohol intake

Many women also experience increased cravings, fatigue, poor recovery from exercise, and difficulty losing weight despite dieting or exercising more intensely.

Stress and sleep can play a major role. Elevated cortisol may contribute to abdominal fat storage, increased appetite, blood sugar fluctuations, and muscle breakdown. Women who wake frequently during the night or feel chronically overwhelmed often notice worsening weight gain and fatigue.

Insulin resistance may also develop during midlife, even in women who are not significantly overweight. Signs can include increased abdominal weight gain, sugar cravings, fatigue after meals, difficulty losing weight, and elevated triglycerides.

A personalized approach to metabolism and hormone health may include:

• Strength training to preserve muscle mass

• Prioritizing protein intake

• Improving sleep quality

• Blood sugar stabilization

• Stress reduction

• Evaluating thyroid and hormone health

• Addressing inflammation and gut health

• Sustainable lifestyle habits rather than extreme dieting

Weight gain during midlife is common, but many women benefit from understanding the underlying factors contributing to metabolic changes rather than blaming themselves or relying solely on restrictive diets.

Progesterone is a hormone primarily produced after ovulation and plays an important role in supporting sleep, mood, menstrual balance, and overall hormone regulation. During perimenopause, progesterone levels are often the first hormone to decline as ovulation becomes less consistent.

Low progesterone may contribute to a variety of symptoms, including:

• Difficulty sleeping or waking during the night

• Anxiety or feeling “on edge”

• Mood swings or irritability

• Heavy or irregular menstrual cycles

• Breast tenderness

• Headaches before cycles

• Fatigue

• Increased PMS symptoms

• Shortened menstrual cycles

• Low stress tolerance

• Bloating or fluid retention

Many women describe feeling overwhelmed, exhausted, emotionally reactive, or unable to “shut their brain off” at night. Progesterone has calming effects within the body and helps balance some of the stimulating effects of estrogen.

As progesterone declines during perimenopause, some women may experience symptoms of estrogen dominance, where estrogen levels are relatively higher compared to progesterone. This hormonal imbalance may contribute to heavier periods, sleep disruption, mood changes, and weight fluctuations.

Stress may also influence progesterone levels. Chronic stress and elevated cortisol can affect ovulation and hormone production, potentially worsening symptoms over time.

Evaluating hormone patterns, sleep, stress, nutrition, thyroid health, and metabolic health may help identify contributing factors to low progesterone symptoms. Treatment approaches vary based on symptoms, medical history, cycle patterns, and overall health goals.Item description

Sleep and stress significantly affect hormones, metabolism, mood, and energy levels. Chronic stress may contribute to elevated cortisol, disrupted sleep, anxiety, inflammation, and increased abdominal weight gain. Many women describe difficulty falling asleep, waking between 2–4am, or feeling exhausted despite sleeping through the night. Supporting nervous system health, sleep quality, and stress management may improve overall wellness and resilience.

The gut plays an important role in digestion, nutrient absorption, hormone metabolism, inflammation, and immune function. Symptoms such as bloating, constipation, reflux, diarrhea, or food sensitivities may sometimes be connected to stress, hormones, microbiome imbalance, dietary triggers, or inflammation. Gut health can also influence skin, mood, metabolism, and overall energy levels. Addressing digestive health may support both short- and long-term wellness.

Hormonal changes, thyroid dysfunction, stress, insulin resistance, nutrient deficiencies, and elevated androgens may contribute to hair thinning, acne, dry skin, or skin texture changes. Hair loss in women can occur gradually and is often emotionally distressing. Skin and hair health frequently reflect what is happening internally within the body. Evaluating potential root causes may help identify contributing factors and personalized treatment approaches.

Polycystic Ovary Syndrome (PCOS) is a hormonal and metabolic condition that can affect women differently at every age and body type. Symptoms may include irregular cycles, acne, elevated testosterone or DHT, hair thinning, excess hair growth, insulin resistance, mood changes, and difficulty losing weight. Some women with PCOS are lean and may not fit the “typical” presentation. A personalized approach may help address hormone balance, metabolic health, and symptom management.

The thyroid helps regulate metabolism, energy, body temperature, mood, digestion, and hair growth. Even mild thyroid dysfunction may contribute to fatigue, weight changes, constipation, hair thinning, dry skin, depression, or brain fog. Some women continue experiencing symptoms despite “normal” thyroid testing. Comprehensive evaluation of thyroid function and contributing lifestyle factors may provide additional insight into ongoing symptoms.

Dry eyes are a common but often overlooked symptom that may become more noticeable during perimenopause and menopause. Hormonal changes can affect tear production, inflammation, and the oil glands that help keep the eyes lubricated.

Many women describe symptoms such as:

• Burning or stinging eyes

• Gritty or sandy sensation

• Eye fatigue

• Blurred vision that improves with blinking

• Redness or irritation

• Light sensitivity

• Excessive tearing from irritation

• Difficulty wearing contact lenses

Estrogen and androgen hormones both influence the health of the tear glands and oil-producing glands within the eyelids. As hormone levels fluctuate, the tear film may become less stable, causing the eyes to feel dry or irritated.

Other factors that may contribute to dry eyes include:

• Aging

• Screen time and reduced blinking

• Autoimmune conditions

• Chronic inflammation

• Certain medications such as antihistamines or antidepressants

• Poor sleep quality

• Nutrient deficiencies

• Thyroid dysfunction

• Environmental factors including air conditioning or dry climates

Some women notice dry eyes alongside other symptoms of hormonal transition such as fatigue, brain fog, dry skin, sleep disruption, or joint discomfort.

Supportive approaches may include:

• Staying hydrated

• Omega-3 fatty acids

• Limiting excessive screen time

• Improving sleep quality

• Using preservative-free artificial tears

• Addressing inflammation and nutrition

• Evaluating thyroid and hormone health when appropriate

Persistent dry eyes, eye pain, significant redness, or vision changes should be evaluated by an eye care professional to rule out underlying eye disease or autoimmune conditions.

Joint pain and stiffness are common symptoms many women experience during perimenopause and menopause. Hormonal changes, particularly declining estrogen levels, may contribute to increased inflammation, changes in collagen support, muscle loss, and discomfort within the joints.

Women often describe:

• Aching joints

• Morning stiffness

• Neck or shoulder tightness

• Hip pain

• Knee discomfort

• Hand stiffness

• Increased soreness after exercise

• Feeling older “overnight”

Estrogen has anti-inflammatory effects and helps support joint, tendon, bone, and connective tissue health. As hormone levels fluctuate, some women notice increased inflammation and reduced recovery, especially during periods of stress, poor sleep, or significant hormonal shifts.

Joint pain may also be influenced by:

• Loss of muscle mass

• Chronic inflammation

• Poor sleep quality

• Elevated cortisol and stress

• Autoimmune conditions

• Thyroid dysfunction

• Vitamin D deficiency

• Insulin resistance

• Sedentary lifestyle

• Prior injuries or arthritis

Many women notice joint symptoms alongside fatigue, weight gain, brain fog, sleep disruption, anxiety, or changes in exercise tolerance during perimenopause.

Supportive approaches may include:

• Strength training and regular movement

• Anti-inflammatory nutrition

• Optimizing sleep and stress management

• Maintaining muscle mass

• Vitamin D and nutrient optimization

• Addressing metabolic and hormone health

• Physical therapy or mobility work when appropriate

Persistent swelling, redness, severe pain, weakness, or joint deformity should be medically evaluated to rule out autoimmune disease, inflammatory arthritis, or other underlying conditions.

Low libido is a common concern for many women during perimenopause and midlife, yet it is often overlooked or dismissed. Sexual desire is influenced by a combination of hormones, stress, sleep, relationship health, emotional well-being, energy levels, and overall physical health.

Hormonal changes involving estrogen, progesterone, and testosterone may contribute to decreased sexual desire, reduced arousal, vaginal dryness, discomfort with intimacy, and difficulty achieving orgasm. Many women notice changes gradually during perimenopause as hormone levels begin to fluctuate.

Women may describe:

• Reduced interest in intimacy

• Feeling emotionally disconnected from sex

• Difficulty becoming aroused

• Vaginal dryness or discomfort

• Fatigue affecting desire

• Feeling “flat” or emotionally exhausted

• Decreased confidence or body image concerns

• Difficulty reaching orgasm

Low libido is often multifactorial and may also be influenced by:

• Chronic stress and elevated cortisol

• Poor sleep quality

• Relationship stress

• Anxiety or depression

• Certain medications

• Thyroid dysfunction

• Fatigue and burnout

• Pain with intercourse

• Weight gain and body composition changes

Many women feel frustrated because they no longer feel like themselves but may hesitate to discuss these symptoms openly. Sexual health is an important part of overall wellness and quality of life.

Supportive approaches may include:

• Improving sleep and stress management

• Addressing vaginal dryness or discomfort

• Strength training and movement

• Optimizing hormone and thyroid health

• Supporting emotional connection and relationship health

• Nutrient optimization

• Addressing fatigue and metabolic health

• Counseling or pelvic floor therapy when appropriate

A personalized approach may help identify the physical, emotional, hormonal, and lifestyle factors contributing to low libido and support overall well-being.

Osteoporosis is a condition in which bones become weaker and more fragile over time, increasing the risk of fractures. Bone loss often develops silently for years before symptoms are noticed, which is why osteoporosis is sometimes called a “silent disease.”

Hormonal changes during perimenopause and menopause can significantly affect bone health. Estrogen plays an important role in maintaining bone density, and declining estrogen levels may accelerate bone loss in women after their 40s and 50s.

Risk factors for osteoporosis may include:

• Menopause and hormonal changes

• Family history of osteoporosis

• Low body weight or muscle mass

• Sedentary lifestyle

• Smoking or excessive alcohol intake

• Vitamin D deficiency

• Low calcium intake

• Chronic inflammation

• Thyroid dysfunction

• Long-term steroid use

• Poor nutrition or restrictive dieting

Many women do not realize they are losing bone density until a DEXA scan is performed or a fracture occurs. Others may notice height loss, posture changes, or chronic back discomfort over time.

Bone health is influenced by much more than calcium alone. Muscle strength, protein intake, hormones, inflammation, sleep, metabolic health, and physical activity all play important roles in maintaining healthy bones.

Supportive approaches for bone health may include:

• Weight-bearing and resistance exercises

• Strength training to maintain muscle mass

• Adequate protein intake

• Optimizing vitamin D levels

• Supporting balance and mobility

• Avoiding smoking and excessive alcohol

• Evaluating hormone and thyroid health

• Addressing inflammation and metabolic health

Many women are surprised to learn that improving muscle strength and overall metabolic health can significantly support bone density and reduce fracture risk over time.

Women with osteoporosis or osteopenia should work with their healthcare provider to determine appropriate monitoring, lifestyle support, and treatment options based on their individual risk factors and bone density results.

Estrogen is one of the primary hormones involved in women’s health and affects far more than reproductive function alone. Estrogen influences the brain, heart, bones, skin, metabolism, muscles, sleep, mood, and nervous system throughout every stage of life.

During perimenopause and menopause, estrogen levels often fluctuate unpredictably before gradually declining. These hormonal shifts may contribute to many of the symptoms women experience during midlife.

Low or fluctuating estrogen may contribute to:

• Hot flashes and night sweats

• Sleep disruption

• Brain fog

• Mood changes or anxiety

• Fatigue

• Vaginal dryness

• Joint discomfort

• Dry skin or dry eyes

• Hair thinning

• Low libido

• Weight changes

• Increased abdominal fat

• Bone loss and osteoporosis

Some women also experience symptoms of estrogen dominance during perimenopause, where estrogen levels are relatively higher compared to progesterone. This imbalance may contribute to:

• Heavy periods

• Breast tenderness

• Bloating

• Mood swings

• Irritability

• Increased PMS symptoms

Estrogen affects neurotransmitters within the brain, which is one reason hormonal changes can influence mood, stress tolerance, motivation, and sleep quality. Estrogen also supports collagen production, cardiovascular health, and bone density.

Many factors may influence estrogen balance, including:

• Age and perimenopause

• Chronic stress

• Sleep quality

• Body fat composition

• Gut health

• Alcohol intake

• Nutrition

• Physical activity

• Thyroid and metabolic health

Because estrogen fluctuates significantly during perimenopause, symptoms can sometimes occur even when lab values appear within normal ranges. Evaluating symptoms, cycle history, sleep, metabolism, and overall health patterns may provide a more complete picture of hormonal health.

Supportive approaches may include:

• Strength training and movement

• Sleep optimization

• Stress management

• Anti-inflammatory nutrition

• Supporting metabolic and gut health

• Personalized hormone evaluation when appropriate

Hormonal health is highly individualized, and symptoms can vary significantly from one woman to another depending on genetics, lifestyle, stress, and overall health status.

The Women’s Health Initiative (WHI) was a large study published in the early 2000s that dramatically changed how hormone replacement therapy (HRT) was viewed in the United States. After the study results were released, many women abruptly stopped hormone therapy and many healthcare providers became hesitant to prescribe it due to concerns about breast cancer, heart disease, and stroke.

Over time, researchers recognized that many of the original headlines and interpretations oversimplified the findings and created significant fear surrounding hormone therapy.

Why the WHI Created Concern

The study initially reported an increased risk of:

• Breast cancer

• Blood clots

• Stroke

• Cardiovascular disease

As a result, hormone therapy use declined rapidly and many women were told hormones were unsafe.

However, later analysis revealed important details that were not widely emphasized in the original media coverage.

Important Limitations of the WHI Study

The average participant age was older

The average woman in the study was approximately 63 years old — often more than 10 years past menopause.

This matters because starting hormone therapy many years after menopause may carry different risks than starting closer to the menopausal transition.

Today, researchers often discuss the “timing hypothesis,” which suggests hormone therapy may have different effects depending on when it is initiated.

Many women already had existing health risks

Some participants had:

• Obesity

• Hypertension

• Smoking history

• Metabolic disease

• Cardiovascular risk factors

These factors may have influenced outcomes.

The study used specific hormone formulations

The WHI primarily evaluated:

• Oral conjugated equine estrogen (Premarin)

• Synthetic progestin medroxyprogesterone acetate (Provera)

These are not the same as all modern hormone therapy approaches. Current treatment options may include different delivery systems, lower doses, and bioidentical hormone formulations.

Risks were often presented without context

While some risks increased statistically, the absolute risk increase for many women was relatively small.

For example, the increase in breast cancer risk received significant media attention, but the actual numerical increase for many women was lower than many people realized.

What Researchers Understand Today

More recent research and reanalysis of WHI data have led many menopause specialists to conclude:

• Hormone therapy may be appropriate and beneficial for some women, particularly when started near menopause

• Risks and benefits vary based on age, timing, medical history, and individual risk factors

• Hormones are not “one-size-fits-all”

• Treatment decisions should be individualized

Many professional organizations now acknowledge that hormone therapy can be an effective treatment option for menopausal symptoms in appropriately selected women.

Potential Benefits of Hormone Therapy

Depending on the individual, hormone therapy may help support:

• Hot flashes and night sweats

• Sleep quality

• Mood and quality of life

• Bone density

• Vaginal and urinary health

• Joint discomfort

• Sexual health

A Personalized Approach Matters

Hormone therapy is not appropriate for every woman. Factors such as personal history, family history, cardiovascular risk, clotting history, breast cancer risk, and overall health should all be considered.

Many women today are seeking balanced, evidence-based discussions about menopause and hormone therapy rather than fear-based messaging that developed after the early WHI headlines.

The conversation surrounding hormone therapy has evolved significantly over the past two decades, and ongoing research continues to improve understanding of women’s hormonal health and menopause care.