Low Energy and Fatigue in Women and MenWhy Am I Always Tired?
If you have been asking yourself "why am I always tired," you are not alone, and you are not lazy. Feeling constantly tired can affect how you perform at work, how you show up for your family, and how you feel about yourself. At Body Balance Medical, we take that seriously enough to investigate it, not just explain it away with age.
- Roughly 13.5% of U.S. adults report feeling very tired most days or every day. Among women aged 18 to 44, that number climbs above 20%. This is not a willpower problem.
- The most common root causes include hormone shifts, thyroid conditions, sleep apnea, nutritional gaps (especially B12 and iron), chronic stress, and mental health conditions.
- Low energy in women and men often share overlapping causes but show up differently, especially around perimenopause and age-related testosterone decline.
- Body Balance Medical evaluates the hormonal, metabolic, and nutritional drivers of fatigue and builds individualized plans that may support better energy levels.
Why Am I Always Tired? Common Causes of Low Energy
Chronic tiredness is almost always multifactorial. Hormones, sleep, medical conditions, nutrition, mental health, and lifestyle all interact with each other. You rarely find a single switch to flip. Instead, fatigue usually reflects several overlapping systems that are slightly off, compounding each other over weeks and months.
When to seek care immediately: If you experience fatigue alongside chest pain, sudden unexplained weight loss, heart palpitations, severe shortness of breath, or neurological changes, seek urgent care. Fatigue lasting more than two weeks without a clear cause warrants a medical evaluation, even without those urgent signs.
A note on "adrenal fatigue." If you have been told you have adrenal fatigue, here is what the evidence actually says: it is not a recognized medical diagnosis. Symptoms often attributed to adrenal fatigue are real, but no peer-reviewed evidence supports it as a standalone disorder. What is real is adrenal insufficiency, a medically recognized condition diagnosed through specific cortisol and ACTH testing. At Body Balance Medical, providers use evidence-based lab work rather than treating an unofficial label.
Our approach at Body Balance Medical is built on the idea that Better Balance, Better You means looking at hormones, weight trends, sleep patterns, mood, and lab data together, rather than blaming age or motivation. If fatigue has lasted longer than four to six weeks, affects work or relationships, or is paired with symptoms like snoring, low mood, or unexplained weight changes, a structured evaluation is a reasonable next step.
Hormones, Thyroid, Sleep, and Mood: The Most Common Root Causes
This is a plain-English walkthrough of the patterns that most often drive low energy in women and men. Only your own provider can determine what applies in your case.
Estrogen and Progesterone Shifts (Women)
Perimenopause can begin in a woman's late 30s or early 40s. Fluctuating estrogen and progesterone commonly cause night sweats, insomnia, brain fog, and persistent low energy. These shifts can also appear earlier in women dealing with irregular periods, fertility challenges, or significant weight changes. Women experiencing these patterns may benefit from a hormone optimization assessment to understand what their labs are showing.
Testosterone Levels (Men and Women)
Low testosterone typically causes decreased energy in men alongside lower motivation, reduced muscle strength, and diminished sex drive. Testosterone declines roughly 1 to 2% per year after age 30. Women also produce testosterone, and low levels can influence energy and mood in ways that are frequently overlooked. Blood testing is the only way to confirm low testosterone as a contributing factor. Symptoms alone are not enough.
Thyroid Conditions
Hypothyroidism (underactive thyroid) is one of the most common causes of persistent low energy. Symptoms include feeling cold all the time, sluggish digestion, weight gain, dry skin, and constant tiredness. Women are more likely to have hypothyroidism than men. Hyperthyroidism (overactive thyroid) can produce a paradoxical fatigue: feeling wired but exhausted, with heart palpitations and difficulty sleeping. A basic thyroid panel is typically one of the first labs ordered for chronic fatigue.
Sleep Issues: Insomnia and Sleep Apnea
Insomnia, whether difficulty falling asleep or staying asleep, consistently undermines daytime energy. Sleep apnea is different: breathing repeatedly stops during sleep, causing fragmented rest and overnight oxygen drops. Sleep apnea is more common in overweight individuals and men, though it is significantly under-diagnosed in women. Untreated sleep apnea is associated with heart disease, stroke, and diabetes, and requires a sleep study and CPAP or other therapy. Body Balance Medical does not treat sleep disorders directly, but can help identify the hormonal and metabolic factors that worsen sleep quality.
Mental Health Conditions
Depression and anxiety produce physical fatigue that is real, not imagined. The exhaustion tied to mood disorders often overlaps with hormonal and lifestyle factors, which is why addressing the physical picture and the emotional picture at the same time tends to work better than either alone.
If you feel hopeless, detached, or have thoughts of self-harm, contact a mental health professional or the 988 Suicide and Crisis Lifeline immediately.
Nutritional Gaps and Anemia
Low B12 affects roughly 3.6% of U.S. adults at deficient levels, with another 12 to 13% in the insufficient range. Anemia reduces the blood's oxygen-carrying capacity, producing weakness and shortness of breath with everyday activity. Correcting documented deficiencies with B12 injections or IV therapy may support more stable day-to-day energy for patients who are genuinely low, though symptom resolution can lag behind lab normalization by several weeks.
Other Medical Conditions
Fatigue can also signal diabetes, heart disease, autoimmune conditions, chronic infections, and chronic fatigue syndrome (ME/CFS). Certain medications cause drowsiness as a side effect. Body Balance Medical does not diagnose or treat all of these conditions, and we recommend maintaining care with a primary physician for a full workup.
Why Low Energy Gets Harder After 40
Age is not a disease, but hormonal shifts, body composition changes, and cumulative stress make chronic fatigue increasingly common in your 40s and 50s.
For women: Perimenopause can begin in the late 30s or early 40s. Fluctuating estrogen and progesterone cause night sweats, insomnia, and low energy that can become relentless. Long-term hormone support, such as Biote hormone pellet therapy, may help stabilize these shifts for appropriate candidates.
For men: Testosterone decline becomes more noticeable in the 40s and 50s, with fatigue symptoms that include less drive, decreased muscle mass, and changes in body fat distribution. In February 2025, following the TRAVERSE trial, the FDA removed the cardiovascular black-box warning previously attached to testosterone therapy, supporting the safety profile of properly supervised TRT. Read the Cleveland Clinic's analysis of the TRAVERSE findings.
Body composition and metabolism: Muscle mass naturally declines while body fat percentage tends to rise after 40, particularly around the abdomen. This slows metabolism and increases risk factors for insulin resistance, joint discomfort, and worsened sleep apnea, all of which feed fatigue cycles. An InBody body composition scan can quantify these changes in 45 seconds.
Lifestyle factors: Caregiving, demanding careers, shift work, and constant device use mean many adults in Las Vegas and Henderson are operating in chronic sleep debt. Even small shifts in bedtime, screen use, and hydration make a measurable difference over time, especially in the desert heat.
| Hormone | When it shifts | How fatigue feels | Who it affects most |
|---|---|---|---|
| Estrogen | Perimenopause, late 30s onward | Night waking, morning exhaustion, brain fog — often alongside hot flashes | Women 35–55 |
| Progesterone | Cycle changes, perimenopause | Restless sleep, anxious tiredness, wired feeling at night | Women 35–50 |
| Testosterone | ~1–2% yearly decline after 30 | Afternoon crashes, low drive, slow recovery from exercise, low mood | Men 35+; women 40+ |
| Thyroid (TSH) | Any age; common in women 40+ | All-day heaviness, mentally slow, cold all the time | Women especially; both sexes |
| Cortisol | Chronic stress, poor sleep | Wired at night, exhausted by afternoon — classic "tired but wired" | Both equally |
How Body Balance Medical Evaluates Persistent Fatigue
Body Balance Medical offers structured fatigue and low-energy evaluations, but patients should also maintain a primary care relationship for broader medical issues. Our evaluation is designed to complement that process, not replace it.
Initial visit: In person at 7975 W Sahara Ave #101 in the Summerlin area of Las Vegas. Your provider sets aside real time to review symptoms, history, medications, and goals. Patterns we listen for include low energy in the morning versus afternoon, "tired but wired" at night, snoring, weight gain or loss, appetite changes, and emotional shifts.
Lab testing: Typical labs may include sex hormones (testosterone, estradiol, progesterone), a thyroid panel, vitamin B12, vitamin D, iron studies, and sometimes basic metabolic markers. For patients concerned about cortisol, we focus on evidence-based adrenal function testing rather than unvalidated panels.
InBody scan: We use InBody body composition scanning in-clinic to measure muscle mass, body fat percentage, and water balance, which can reveal links between fatigue, weight gain, and loss of lean body mass that a scale alone would miss.
Collaboration: If lab results suggest conditions outside BBM's scope, such as advanced cardiac disease or complex autoimmune disease, we refer to the appropriate specialist. Our aim is to uncover contributing factors and build a practical plan, not to replace comprehensive care.
Services at Body Balance Medical That May Support Better Energy
No single treatment relieves fatigue for everyone. Body Balance Medical builds individualized programs based on what your evaluation actually shows. Below are the services most commonly involved in fatigue-related care.
Hormone Optimization for Women
Structured hormone optimization plans, including Biote-certified pellet therapy when appropriate, may help women experiencing fatigue, sleep disruption, and mood changes linked to perimenopause or menopause. Many women report improved sleep quality and more stable energy when hormones are brought into a healthier range.
Testosterone Optimization for Men
Clinically supervised testosterone replacement therapy may support energy, mood, and muscle maintenance in men with confirmed low testosterone. You can also read more about the specific connection between testosterone, energy, and mood, and when to consider getting tested.
Medically Supervised Weight Loss
For patients carrying excess weight, gradual supervised weight loss can reduce sleep apnea risk, joint pain, and insulin resistance, all of which indirectly support better energy. Our medical weight loss programs use compounded semaglutide and compounded tirzepatide, prepared by licensed compounding pharmacies and monitored by a provider throughout. Compounded medications are not FDA-approved.
IV Therapy and B12 Injections
IV therapy blends and targeted B12 injections may help some patients address dehydration or documented nutritional deficiencies that contribute to fatigue, especially after illness, travel, or intense training. B12 injections are most beneficial for patients who are genuinely low or have documented absorption issues.
Peptide Therapy (Sermorelin)
Sermorelin is a peptide therapy that may support growth hormone release, recovery, and body composition in appropriate candidates. Some patients notice improved sleep quality and more sustained energy, though results vary significantly.
Lifestyle and Sleep Coaching
Alongside clinical treatments, we emphasize realistic lifestyle changes. Consistent sleep schedules, regular moderate exercise, balanced nutrition, and adequate hydration in the Las Vegas heat are foundational. Clinical treatments work best when layered on top of these habits, not used as substitutes for them.
Meet Your Provider for Low Energy Concerns in Las Vegas
Mia's clinical focus at Body Balance Medical includes women's hormone optimization, men's testosterone therapy, and peptide therapies like Sermorelin in the context of energy, mood, and body composition. Her Biote certification supports structured, evidence-based hormone pellet protocols rather than trial-and-error dosing. She reviews lab data, listens to your symptom history, and explains options in clear language. Patients are encouraged to lead with their own goals, whether that is getting through workdays without crashing, returning to regular exercise, or simply being more present with family.
Body Balance Medical is LegitScript Certified, an independent verification that our prescribing, dispensing, and medication practices meet applicable laws. Mia and Teresa are both Biote-Certified in hormone optimization. We serve Las Vegas, Henderson, and Summerlin from our clinic at 7975 W Sahara Ave #101.
Frequently Asked Questions About Low Energy and Fatigue
If fatigue starts suddenly alongside chest pain, shortness of breath, or rapid weight loss, seek urgent care. For chronic low energy without red flags, most adults start with a primary care provider who can screen for broad medical conditions, anemia, and thyroid issues. Body Balance Medical is an in-person wellness and hormone clinic in Las Vegas that focuses on hormonal, nutritional, and metabolic contributors to low energy. We work best alongside your primary care team, not instead of it.
Adrenal fatigue is not a recognized medical diagnosis. True adrenal insufficiency is a serious condition diagnosed with specific hormone tests and imaging, and requires specialist care. At Body Balance Medical, providers look for real patterns in cortisol levels, thyroid function, sex hormones, sleep, and stress, then build a plan around what the evidence shows.
Excess weight, especially around the abdomen, can increase risk of sleep apnea, joint pain, and insulin resistance, all of which drain energy. At the same time, very low-calorie diets or extreme exercise can also cause severe fatigue by stressing the body and reducing muscle mass. Our medically supervised weight loss programs using compounded semaglutide or compounded tirzepatide are designed to support gradual, sustainable weight loss while preserving muscle and monitoring energy levels throughout.
Typical low testosterone symptoms in men include decreased energy, reduced sex drive, loss of muscle, increased abdominal fat, and lower mood. These signs overlap with many other conditions. Blood testing interpreted in context of age, draw timing, and overall health is the only way to confirm. Body Balance Medical offers testosterone evaluation and optimization in Las Vegas, with in-person lab review and ongoing monitoring.
In many patients, consistent shifts in sleep, movement, nutrition, hydration, and stress management noticeably improve daily energy, with or without medications. Practical starting points: seven to eight hours of sleep nightly, screens off an hour before bed, two 15-minute walks per day, regular balanced meals, and staying hydrated in the desert heat. Clinical treatments like hormone optimization, IV therapy, or B12 injections are most effective when layered on top of these habits, not used as replacements for them.
Tired of Feeling Tired?
Chronic low energy is common, but it is not inevitable. A structured assessment at Body Balance Medical can help identify the hormonal, nutritional, and lifestyle factors that may be holding you back. We evaluate the whole picture, not just the symptom you walked in with.
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