Hormone Tests to Ask for at 45

Reaching your mid-40s often brings shifts in energy, mood, metabolism and overall well-being. Understanding which hormone tests to request can help you get a clear picture of what’s happening inside your body—and guide you on how to get your hormones balanced. Below is an overview of key tests, what they measure and why they matter at age 45.

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1. Thyroid Panel

Your thyroid gland regulates metabolism, energy levels and many other bodily functions. Even subtle imbalances can cause fatigue, weight changes or brain fog.

• TSH (Thyroid-Stimulating Hormone):
  Signals your thyroid to produce hormones. High TSH often means an underactive thyroid (hypothyroidism); low TSH may indicate an overactive thyroid (hyperthyroidism).

• Free T4 (Thyroxine) and Free T3 (Triiodothyronine):
  Measure the active thyroid hormones available to your cells. Discrepancies between T4 and T3 can point to conversion issues.

• Anti-TPO and Anti-Thyroglobulin Antibodies:
  Screen for autoimmune thyroid conditions like Hashimoto’s or Graves’ disease.

Why it matters: At 45, thyroid dysfunction becomes more common—especially for women. Correcting thyroid imbalance can improve energy, mood, weight control and skin health.

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2. Reproductive Hormones

For Women

As you approach perimenopause, estrogen and progesterone levels fluctuate, affecting cycles, sleep, mood and bone health.

• FSH (Follicle-Stimulating Hormone) and LH (Luteinizing Hormone):
  Elevated FSH/LH can signal dwindling ovarian reserve and the onset of perimenopause or menopause.

• Estradiol (E2):
  The main form of estrogen. Low levels can cause hot flashes, vaginal dryness and mood swings; very high levels may raise certain health risks.

• Progesterone:
  Important for mood, sleep and menstrual regularity. Low levels can lead to irregular periods or heavier bleeding.

• Testosterone and DHEA-S:
  Though often thought of as “male” hormones, in women they support libido, muscle mass and energy.

For Men

Testosterone gradually declines in many men by age 45. This can affect energy, mood, muscle mass and sexual health.

• Total Testosterone:
  Measures both free and bound testosterone.

• Free or Bioavailable Testosterone:
  The active form your cells can use. Low free testosterone may cause fatigue, low libido or muscle loss even if total testosterone is “normal.”

• SHBG (Sex Hormone-Binding Globulin):
  Binds testosterone and estrogen, affecting their availability. High SHBG can lower free testosterone.

• Estradiol:
  Men need small amounts of estrogen for bone health and mood regulation. An imbalance can lead to weight gain or gynecomastia.

• DHEA-S (Dehydroepiandrosterone-Sulphate):
  An adrenal hormone that serves as a precursor to sex hormones. Levels naturally decline with age.

Why it matters: Knowing where your sex hormones stand helps you and your doctor decide on lifestyle changes or therapies—if needed—to support healthy energy, tone mood swings and preserve bone density.

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3. Adrenal Function Tests

Chronic stress can throw off cortisol rhythms and DHEA production, contributing to fatigue, sleep disturbances and weight changes.

• Morning Cortisol:
  Cortisol should spike on waking to boost alertness.

• Diurnal Cortisol Profile (4-point test):
  Measures cortisol at several points across the day to detect blunted or reversed patterns.

• DHEA-S:
  As above, low levels can indicate adrenal fatigue; high levels might signal other imbalances.

Why it matters: Balanced cortisol helps you manage stress, maintain a healthy weight and enjoy restorative sleep.

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4. Metabolic and Pancreatic Hormones

Subtle changes in insulin sensitivity can precede weight gain, energy dips or prediabetes.

• Fasting Insulin and Glucose:
  Elevated fasting insulin may reveal early insulin resistance before blood sugar rises.

• HbA1c (Glycated Hemoglobin):
  Reflects average blood sugar over the past 2–3 months. A helpful screen for prediabetes.

Why it matters: Early detection of insulin resistance allows dietary and lifestyle tweaks to prevent diabetes and support steady energy levels.

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5. Other Helpful Markers

• Vitamin D (25-hydroxyvitamin D):
  Technically a pro-hormone, it’s vital for immune health, mood and bone strength.
• IGF-1 (Insulin-Like Growth Factor-1):
  Indicates growth hormone activity, which affects muscle mass and tissue repair.
• Prolactin:
  Elevated levels can interfere with sex hormone balance and menstrual cycles or libido.
• Sex Hormone Panels (Comprehensive):
  Some labs offer “middle-age hormone profiles” that bundle key markers for convenience.

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How to Get My Hormones Balanced

Once you have your test results, consider a multifaceted plan:

1. Nutrition

   • Prioritize whole foods: lean proteins, healthy fats, colorful vegetables and low-glycemic fruits.
   • Include phytoestrogen sources (e.g., soy, flaxseeds) if your doctor agrees.
   • Limit refined carbs, excess caffeine and alcohol, which can disrupt hormone rhythms.

2. Exercise

   • Combine strength training (two to three times per week) with moderate cardio.
   • Incorporate flexibility and balance work (yoga, Pilates) to support stress relief.

3. Sleep and Stress Management

   • Aim for 7–9 hours of consistent, quality sleep.
   • Practice mindfulness techniques: meditation, deep breathing or guided imagery.
   • Keep a regular sleep/wake schedule, even on weekends.

4. Targeted Supplementation (Only after discussing with your doctor)

   • Vitamin D3 and magnesium for bone and muscle health.
   • Omega-3 fatty acids for inflammation and mood support.
   • Adaptogens (ashwagandha, rhodiola) for adrenal balance.

5. Medical Therapies

   • Hormone Replacement Therapy (HRT) or bioidentical hormones for women in perimenopause/menopause.
   • Testosterone replacement for men with clinically low levels.
   • Thyroid medication if testing confirms hypo- or hyperthyroidism.

6. Regular Monitoring

   • Follow up hormone tests every 6–12 months or as recommended by your provider.
   • Track symptoms and lab results to fine-tune your plan.

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Next Steps

Feeling uncertain about which tests to prioritize? Consider a free, online symptom check, using the doctor approved Ubie Symptom Checker to guide your conversation with your healthcare provider.

Finally, always discuss any test results or concerning symptoms with a qualified healthcare professional. If you experience severe symptoms—such as chest pain, sudden weakness, breathing difficulty or other life-threatening issues—seek medical attention immediately. And for any hormone concerns, please speak to a doctor to determine the most appropriate testing and treatment plan for your individual health needs.