Understand vasomotor symptoms in relation to cardiometabolic risk and the role of hormone therapy in managing them.
Table of Contents
I am Dr. Alex Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST. In this educational post, I will walk you through a modern, evidence-based, and integrative approach to menopause, vasomotor symptoms, hot flashes, night sweats, menopausal hormone therapy, and nonhormonal treatment options. My goal is to make the science understandable while also explaining how clinical decisions are made in real patient care.
Menopause is not simply the end of menstrual cycles. It is a whole-body neuroendocrine transition involving the ovaries, brain, cardiovascular system, bones, skin, urogenital tissues, musculoskeletal system, metabolism, and autonomic nervous system. Many patients come in asking whether they will have hot flashes forever, whether hormone therapy is safe, and whether there are alternatives if they cannot or do not want to use hormones.
At Injury Medical Clinic PA, also known as Mission Plaza Injury Medical Clinic, in El Paso, Texas, I integrate chiropractic care, functional medicine, rehabilitation, personal injury care, and women’s health support within a multidisciplinary model. I am honored to work with Dr. Maria Guadalupe Cardenas, MD, Board Certified in Internal Medicine, NPI #1164426749, Texas MD License #J2933, who brings more than 40 years of experience as an internist and serves as our Medical Director and Collaborative Physician. Her internal medicine expertise strengthens diagnostic safety, medication oversight, cardiovascular risk evaluation, and collaborative decision-making for patients considering hormone and nonhormonal therapies.
This post discusses the physiology of menopause, why estradiol decline, KNDy neurons, neurokinin B, and the hypothalamic thermoregulatory center matter, how transdermal estrogen, micronized progesterone, SSRIs/SNRIs, gabapentin, clonidine, fezolinetant, SERMs, local vaginal estrogen, and lifestyle strategies are used, and how integrative chiropractic care may support nervous system regulation, thoracic mechanics, sleep quality, pain reduction, and overall resilience.
Many women arrive in my office feeling exhausted, frustrated, and unheard. A patient like “Miss Jenny,” a 52-year-old professional, may describe waking multiple times each night feeling as if she is trapped under a hot blanket. She may be drenched in sweat, chilled afterward, and unable to return to restorative sleep. During the day, she may experience sudden waves of heat, flushing, anxiety-like sensations, and brain fog.
The first thing I tell patients is this: you are not imagining it. Vasomotor symptoms, commonly known as hot flashes and night sweats, are real neuroendocrine events. They are not simply emotional reactions, nor signs of weakness. They reflect changes in ovarian hormone production, brain thermoregulation, autonomic signaling, vascular tone, and sleep physiology.
Menopause is clinically defined as the final menstrual period followed by 12 consecutive months without menstruation, assuming no other medical cause explains the absence of cycles. In the United States, the median age of natural menopause is approximately 52 years (Harlow et al., 2012; Santoro et al., 2021). However, the transition usually begins years earlier, often between ages 45 and 55.
Important terms include:
The menopausal transition affects far more than the reproductive system. It can influence:
This is why a multidisciplinary approach is so valuable.
At Injury Medical Clinic PA, also known as Mission Plaza Injury Medical Clinic, in El Paso, Texas, our model is built around coordinated care. Menopause care often requires more than one perspective because symptoms may involve hormones, cardiovascular risk, sleep disruption, musculoskeletal pain, metabolic imbalance, stress physiology, and nervous system regulation.
Dr. Maria Guadalupe Cardenas, MD, is Board Certified in Internal Medicine and has more than 40 years of experience as an internist. She serves as our Medical Director and Collaborative Physician.
Her credentials include:
Dr. Cardenas provides medical oversight for:
My work combines several clinical lenses:
Through my clinical observations and educational work shared through Chiropractic Scientist and my professional updates on LinkedIn, I continue to emphasize that menopause care must consider the whole person: hormones, spine, nervous system, metabolism, sleep, inflammation, injury history, and daily function.
Clinical observation resources:
To help patients understand where they are in the menopausal journey, I use standardized staging concepts from the Stages of Reproductive Aging Workshop, commonly known as STRAW+10 (Harlow et al., 2012). These stages help clinicians interpret symptoms, menstrual changes, and expected hormonal variability.
During this stage, menstrual cycles may still appear regular, but subtle changes can begin. Follicle quantity and quality decline, and follicle-stimulating hormone, or FSH, may become more variable.
This stage often includes menstrual cycle variability of 7 days or more. A woman may notice that periods come early one month and late the next.
This stage includes skipped cycles or intervals of 60 days or more without menstruation. FSH generally rises, but levels can still fluctuate significantly.
This includes the first 1 to 2 years after menopause. Vasomotor symptoms often peak during this time.
This occurs several years after menopause. Some women continue to experience hot flashes and night sweats for many years. Persistent symptoms are not unusual, and treatment can still be individualized.
The reason staging matters is that a 45-year-old with irregular cycles, a 52-year-old who has not had a period for 15 months, and a 62-year-old with new hot flashes require different diagnostic reasoning and risk assessment.
Hot flashes are not simply episodes of feeling warm. They are hypothalamic thermoregulatory events involving the brain, blood vessels, sweat glands, sex hormones, neurotransmitters, and autonomic nervous system.
During reproductive years, the ovaries produce estradiol, the dominant and most biologically active estrogen. As ovarian follicles decline, inhibin production decreases. Inhibin normally helps regulate the pituitary gland. When inhibin drops, the pituitary releases more FSH.
However, during perimenopause, FSH can be unpredictable. It may be elevated one day and closer to normal another day. This is why routine FSH testing is often not necessary in a typical 52-year-old woman with classic menopausal symptoms and 12 months without menstruation.
Hormonal changes include:
After menopause, the body still produces some estrogen, mainly estrone, through peripheral conversion in adipose and adrenal-related tissues. However, total estrogen tone is much lower than during the reproductive years (Santoro et al., 2021).
The hypothalamus is the brain’s central thermostat. It maintains the body’s temperature within a comfortable range called the thermoneutral zone.
When estrogen levels decline, this thermoneutral zone narrows. That means even a tiny increase in core temperature can trigger a dramatic heat-loss response.
The body responds with:
This explains why a woman may suddenly feel intense heat even when the room temperature has not changed.
One of the most important modern discoveries in menopause science involves KNDy neurons. These hypothalamic neurons produce:
These neurons help regulate reproductive hormone signaling and thermoregulation. Estrogen normally restrains neurokinin B signaling. When estrogen declines, neurokinin B activity becomes more prominent, increasing KNDy neuron activation and contributing to hot flashes (Mittelman-Smith et al., 2012; Rance et al., 2013).
This research helps explain why newer medications such as neurokinin-3 receptor antagonists, including fezolinetant, can reduce hot flashes without giving estrogen. These medications target the pathway involved in thermoregulatory instability (Lederman et al., 2023).
Hot flashes are often associated with luteinizing hormone, or LH, pulses. LH itself is not the direct cause of hot flashes, but LH pulsatility reflects shared hypothalamic activity involved in both reproductive signaling and thermoregulation (Freedman, 2005).
Testing may be considered when:
A thorough evaluation may include:
The goal is not to order unnecessary tests. The goal is to understand the patient’s full risk profile and symptom drivers.
Menopausal hormone therapy, or MHT, remains the most effective treatment for moderate to severe vasomotor symptoms in appropriate candidates (The NAMS 2022 Hormone Therapy Position Statement Advisory Panel, 2022).
Hormone therapy may be used for:
Estrogen helps widen the narrowed thermoneutral zone. In practical terms, it makes the hypothalamic thermostat less reactive. This reduces the frequency and intensity of hot flashes.
Estrogen also supports:
This point is critical:
Unopposed estrogen can stimulate the uterine lining and increase the risk of endometrial hyperplasia and endometrial cancer. This is why progesterone protection is not optional for women with a uterus.
Common endometrial protection options include:
In many patients, I prefer discussing transdermal estradiol first. Transdermal therapy includes patches, gels, sprays, and lotions that deliver estradiol through the skin.
Transdermal estrogen bypasses first-pass liver metabolism. This matters because oral estrogen passes through the liver first and can increase clotting factors, triglycerides, and inflammatory markers in some patients.
Potential advantages of transdermal estrogen include:
This is especially important for patients with:
Options include:
Dosing is individualized. I generally believe in starting with the lowest effective dose and titrating based on symptom relief and tolerability.
Patients using gels, sprays, or lotions should allow the medication to dry completely before dressing and should avoid skin-to-skin transfer to others.
Some patients prefer oral therapy or cannot tolerate patches or gels. Oral therapy may still be appropriate for selected patients after risk assessment.
Oral estrogen-only therapy is used only in women without a uterus.
Examples include:
The key concern is that oral estrogen is associated with a higher risk of clotting than transdermal estrogen due to hepatic first-pass metabolism.
Women with a uterus require endometrial protection. Combination options may include:
The choice of progestogen matters. Some patients experience mood changes, bloating, or breast tenderness with one formulation but not another. Micronized progesterone is often favored because it may be better tolerated and may support sleep in some patients.
A selective estrogen receptor modulator, or SERM, acts like estrogen in some tissues and blocks estrogen effects in others.
One specialized option is conjugated estrogens plus bazedoxifene, marketed as Duavee.
Bazedoxifene helps protect the endometrium without requiring a traditional progestin. This can be useful for selected women who need vasomotor symptom relief and bone support but do not tolerate progestins well.
Potential benefits include:
This is not for everyone, but it is part of the modern individualized treatment landscape.
Injectable estradiol, such as estradiol valerate or estradiol cypionate, is generally reserved for severe refractory symptoms or other specialized clinical contexts. These options require careful dosing, monitoring, and endometrial protection if the uterus is present.
Not every woman can or wants to use hormone therapy. Some have contraindications. Others prefer to avoid hormones. Fortunately, evidence-based nonhormonal options exist.
Medications such as paroxetine, venlafaxine, and desvenlafaxine can reduce hot flash frequency and severity by influencing serotonergic and noradrenergic pathways involved in hypothalamic thermoregulation (Freeman et al., 2011; The NAMS 2023 Nonhormone Therapy Position Statement Advisory Panel, 2023).
These may be useful for patients who also have:
Gabapentin can be especially helpful when night sweats disrupt sleep. It may reduce central neuronal excitability and improve sleep continuity in selected patients.
Clonidine may provide modest benefit but can be limited by side effects such as:
Fezolinetant is a newer nonhormonal therapy that targets the neurokinin-3 receptor. It works directly on the neurokinin B pathway involved in KNDy neuron thermoregulatory signaling (Lederman et al., 2023).
This is a major development because it addresses the hot flash mechanism without estrogen exposure. Monitoring liver function and reviewing medications are important according to prescribing guidance.
Genitourinary syndrome of menopause, or GSM, includes:
If GSM is the only concern, local vaginal therapy is often preferred over systemic hormone therapy.
Options include:
Local estrogen has minimal systemic absorption for many patients and can be very effective. In patients with a history of breast cancer or estrogen-sensitive cancer, I do not make that decision alone. Collaboration with the patient’s oncologist is essential.
Hormone therapy can be powerful and helpful, but it must be used thoughtfully.
Systemic hormone therapy is generally avoided or requires specialist collaboration in patients with:
Any unexplained postmenopausal bleeding requires attention. Evaluation may include:
This is one reason medical oversight from Dr. Cardenas is so valuable. Safety is built into the model.
When starting MHT, the body may need time to adjust.
Common early side effects may include:
If symptoms are persistent or severe, we reassess the dose, route, and formulation. Sometimes lowering the dose, changing the progestogen, switching from oral to transdermal therapy, or adding local GSM therapy solves the problem.
Follow-up often includes:
The goal is not to place every patient on therapy indefinitely. The goal is to use the right tool for the right patient at the right time.
Lifestyle strategies are not a replacement for needed medical care, but they are foundational. A reactive nervous system, poor sleep, inflammation, blood sugar instability, alcohol use, and stress can worsen vasomotor symptoms.
Sleep is often the first domino. Repeated night sweats fragment sleep, and poor sleep makes the nervous system more reactive.
Helpful strategies include:
I often focus on:
Insulin resistance, inflammation, and unstable blood sugar can increase sympathetic activation and worsen sleep.
Exercise supports:
A balanced program includes:
Chiropractic care does not replace hormone therapy or medical evaluation. Instead, it can complement menopause care by addressing the musculoskeletal and nervous system factors that influence symptom burden.
Many patients with hot flashes describe chest tightness, neck tension, shallow breathing, and a sense of internal pressure during episodes. In clinical practice, I often observe that cervicothoracic restriction, forward head posture, upper thoracic stiffness, and rib cage dysfunction may amplify distress during hot flashes.
The upper thoracic spine and rib cage influence:
Care may include:
The reasoning is physiological and functional:
In my clinical observations, patients who combine appropriate medical therapy with thoracic mobility, breathing retraining, and rehabilitation often report fewer nocturnal awakenings, improved recovery after flashes, and less distress during episodes.
Menopause symptoms can feel worse when a patient is also dealing with chronic pain, whiplash, spinal injury, occupational strain, or post-traumatic musculoskeletal dysfunction.
Chronic pain increases:
All of these can worsen the experience of hot flashes and night sweats.
In our personal injury and rehabilitation setting, we may address:
By reducing pain-mediated arousal, patients often regain a wider functional comfort window. That means the nervous system becomes less reactive, sleep improves, and menopause symptoms become easier to manage.
For a 52-year-old patient who has not had a menstrual period for 15 months and is experiencing debilitating night sweats, my approach is stepwise.
I explain that symptoms are likely related to:
We review:
If she is medically appropriate and wants hormone therapy, we may consider:
If she cannot or does not want hormone therapy, we may consider:
If GSM is present, we may add:
We include:
We track:
This is how care becomes personalized rather than generic.
Here are key principles I use when guiding patients:
Menopause is a normal biological transition, but severe symptoms deserve compassionate and evidence-based care. Hot flashes and night sweats are driven by changes in estrogen signaling, hypothalamic thermoregulation, KNDy neuron activity, neurokinin B pathways, vascular responses, and autonomic nervous system activation.
For eligible patients, menopausal hormone therapy remains the most effective treatment for moderate to severe vasomotor symptoms. Transdermal estradiol is often favored because it avoids first-pass hepatic metabolism and may carry a lower risk of clotting than oral estrogen. Women with a uterus require progestogen protection, often with micronized progesterone.
For patients who cannot or do not want hormones, SSRIs, SNRIs, gabapentin, clonidine, and fezolinetant provide important nonhormonal pathways. For GSM, local vaginal estrogen, DHEA, and other targeted therapies can be life-changing.
In our El Paso multidisciplinary model, Dr. Maria Guadalupe Cardenas, MD, provides internal medicine leadership and safety oversight. At the same time, I integrate chiropractic biomechanics, functional medicine, rehabilitation, personal injury care, and nervous system support. Together, we aim to help patients move through menopause with clarity, safety, dignity, and improved quality of life.
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The information herein on "Vasomotor Symptoms Management Tips Using Hormone Therapy" is not intended to replace a one-on-one relationship with a qualified health care professional or licensed physician and is not medical advice. We encourage you to make healthcare decisions based on your research and partnership with a qualified healthcare professional.
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Dr. Alex Jimenez DC, MSACP, APRN, FNP-BC*, CCST, IFMCP, CFMP, ATN
email: coach@elpasofunctionalmedicine.com
Multidisciplinary Licensing & Board Certifications:
Licensed as a Doctor of Chiropractic (DC) in Texas & New Mexico*
Texas DC License #: TX5807, Verified: TX5807
New Mexico DC License #: NM-DC2182, Verified: NM-DC2182
Multi-State Advanced Practice Registered Nurse (APRN*) in Texas & Multi-States
Multi-state Compact APRN License by Endorsement (42 States)
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Florida APRN License #: 11043890, Verified: APRN11043890 *
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ANCC FNP-BC: Board Certified Nurse Practitioner*
Compact Status: Multi-State License: Authorized to Practice in 40 States*
Graduate with Honors: ICHS: MSN-FNP (Family Nurse Practitioner Program)
Degree Granted. Master's in Family Practice MSN Diploma (Cum Laude)
Dr. Alex Jimenez, DC, APRN, FNP-BC*, CFMP, IFMCP, ATN, CCST
(Board Certified: Family Practice Nurse Practitioner—Multistate)*
(Licensed Nurse Practitioner & Chiropractor - Multistate)*
Clinical Director
Digital Business Card
Dr. Maria Cardenas, MD
(Board Certified: Internal Medicine)
(Licensed Medical Doctor)
Medical Director, Clinical Director & Collaborative Physician
NPI # 1164426749
MD License #: J2933
Licenses and Board Certifications:
MD: Medical Doctor
DC: Doctor of Chiropractic
APRNP: Advanced Practice Registered Nurse
FNP-BC: Family Practice Specialization (Multi-State Board Certified)
RN: Registered Nurse (Multi-State Compact License)
CFMP: Certified Functional Medicine Provider
MSN-FNP: Master of Science in Family Practice Medicine
MSACP: Master of Science in Advanced Clinical Practice
IFMCP: Institute of Functional Medicine
CCST: Certified Chiropractic Spinal Trauma
ATN: Advanced Translational Neutrogenomics
Memberships & Associations:
TCA: Texas Chiropractic Association: Member ID: 104311
AANP: American Association of Nurse Practitioners: Member ID: 2198960
ANA: American Nurse Association: Member ID: 06458222 (District TX01)
TNA: Texas Nurse Association: Member ID: 06458222
NPI: 1205907805
| Primary Taxonomy | Selected Taxonomy | State | License Number |
|---|---|---|---|
| No | 111N00000X - Chiropractor | NM | DC2182 |
| Yes | 111N00000X - Chiropractor | TX | DC5807 |
| Yes | 363LF0000X - Nurse Practitioner - Family | TX | 1191402 |
| Yes | 363LF0000X - Nurse Practitioner - Family | FL | 11043890 |
| Yes | 363LF0000X - Nurse Practitioner - Family | CO | C-APN.0105610-C-NP |
| Yes | 363LF0000X - Nurse Practitioner - Family | NY | N25929 |
Dr. Alex Jimenez, DC, APRN, FNP-BC*, CFMP, IFMCP, ATN, CCST
(Board Certified: Family Practice Nurse Practitioner—Multistate)*
(Licensed Nurse Practitioner & Chiropractor - Multistate)*
Clinical Director
Digital Business Card
Dr. Maria Cardenas, MD
(Board Certified: Internal Medicine)*
(Licensed Medical Doctor)*
Medical Director, Clinical Director & Collaborative Physician
NPI # 1164426749
MD License #: J2933
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