What Biomarkers Should Women Track? Measuring Hormonal Health, Metabolism, and Longevity

How do you find out what your body is trying to say? Often, the answer lies in your biomarkers.

Biomarkers, or biological markers, are measurable indicators that give you a glimpse of what’s happening inside your body. They can help you see hormonal fluctuations across your menstrual cycle, give early warning for imbalances or transitions like perimenopause and menopause, and help you understand your metabolism and other factors that affect your longevity and aging.

Once something you could only have done at your doctor’s office, biomarker tracking is now available on your own terms from comprehensive testing providers, such as Lifeforce, Function Health, and Hers.

But with so many different factors, what do you track? If nothing else, start with the basics: hormonal, metabolic, inflammatory, and longevity markers. 

Hormonal Biomarkers: Tracking More Than Just Your Period

Hormone tracking is valuable for women at any age, whether you’re trying to conceive, match your activity to your cycle, or manage symptoms of menopause. Your hormones fluctuate throughout your life, even from month to month, and knowing what to look for (and when) can help you feel your best. Regularly testing their levels can help you stay on top of your cycle and detect potential problems before they become serious. 

Estradiol

Estradiol is the primary form of estrogen in the body, produced mainly in the ovaries. It plays several key functions in hormonal health and in other body systems:

• Helping maintain a healthy reproductive system
• Aiding in regulating the menstrual cycle
• Promoting bone health, especially during reproductive years

If your estradiol is low, you may experience fatigue, mood swings, absent or irregular periods, or decreased libido. If it’s high, you might have bloating, heavy or irregular bleeding, mood changes, or weight gain. 

Progesterone

Progesterone plays an important role in menstrual health, fertility, and sleep:

• Helping the body prepare for a potential pregnancy
• Assisting in regulating the menstrual cycle
• Promoting brain health and restful sleep

If progesterone is low, you may have an irregular or absent menstrual cycle, or difficulty conceiving or carrying a baby to term. It might also be an indication of health conditions such as PCOS. 

Progesterone rises naturally during pregnancy, but if your progesterone is high and you’re not pregnant, it may cause symptoms of fatigue, breast tenderness, water retention, and mood changes.

Testosterone

Testosterone isn’t just important for men. Women’s bodies produce testosterone as well (albeit in smaller quantities), and it’s vital for:

• Maintaining energy levels
• Aiding cognitive function
• Keeping bones and muscles healthy

Low testosterone in women can result in persistent fatigue, low libido, muscle weakness, and weight gain. 

On the other hand, high testosterone can cause irregular periods, acne, and increased body hair. High levels can also be connected to PCOS and ovarian tumors, making it incredibly helpful to track if you’re at risk.

Thyroid Panel

There are several biomarkers involved in a thyroid panel, including thyroid-stimulating hormone (TSH), thyroxine (T4), and triiodothyronine (T3). 

These hormones assist in regulating:

• Metabolism
• Heart rate
• Cardiac output
• Body temperature

Low thyroid levels (hypothyroidism) are often the result of an underactive thyroid, causing a wide range of symptoms: fatigue, weight gain, cold intolerance, cognitive and mental health issues, and digestive issues. 

High thyroid levels (hyperthyroidism) can result in unintended weight loss, irregular heart rate, elevated blood pressure, and digestive problems.

Metabolic Biomarkers: The Hidden Drivers of Energy and Weight

Maintaining or getting to a healthy weight is no small feat, let alone while maintaining your energy levels. If you’re doing all the right things but still feel like rotting in bed and experiencing drastic weight fluctuations, the answer might be in your metabolic biomarkers. 

Insulin

Monitoring insulin levels has long been a part of life for those with diabetes, but even if you’re not diabetic, your insulin levels still matter — it’s possible to have elevated insulin levels despite having normal blood sugar. 

Insulin helps in various ways:

• Regulating blood glucose
• Managing nutrient metabolism
• Aiding in energy production and storage

Low insulin results in elevated blood sugar or hyperglycemia, causing fatigue, weight loss, blurred vision, and frequent urination. Untreated, this can lead to more serious health conditions. 

High insulin levels (hyperinsulinemia) also result in fatigue, but they can also cause rapid weight gain, cravings, extreme hunger, and brain fog.

Just keep in mind that if you’re interested in tracking your biomarkers, insulin levels are not always checked by default. So if you want to have them measured, confirm that they’re included and request them if necessary.

apoB

Apolipoprotein B (apoB) is a lesser-known biomarker that’s nevertheless very important. It’s a protein that carries the kind of cholesterol that causes blockage-causing plaque through the bloodstream. As a result, it’s a key indicator of cardiovascular health, and many providers consider testing for it to be more effective at predicting cardiovascular risk than traditional lipid panels. It’s also connected to metabolic syndrome and diabetes, making regular monitoring critical for those who have a family history or lifestyle where heart problems are likely to be present. 

High apoB levels indicate a higher amount of plaque-forming particles in the bloodstream, which puts an individual at high risk for cardiovascular disease. Low apoB, on the other hand, indicates a low risk for cardiovascular disease. However, if it is exceptionally low, it may indicate malnutrition or liver disease.

Glucose and HbA1c

Blood glucose is commonly monitored by many with diabetes or other metabolic conditions. Specifically, hemoglobin A1c (HbA1c) measures your average blood sugar level over the past 2–3 months, making it effective at showing blood sugar levels and their effect over time. It’s particularly helpful for those with metabolic conditions to determine the effectiveness of protocols, and it can be useful in the diagnosis of diabetes.

High HbA1c levels indicate consistently elevated blood sugar, which may be related to prediabetes or diabetes and can increase the risk of more severe conditions, including heart disease, nerve damage, and vision issues. HbA1c levels that fall below the normal range may be indicative of good metabolic health, but they can also be associated with health issues such as anemia or liver disease.

Inflammatory Biomarkers: Going Beyond What Hurts

Inflammatory biomarkers can assist in the diagnosis and treatment of many health conditions, as well as help monitor disease progression. Perhaps the most common, tracked because of its usefulness in predicting cardiovascular disease, is hsCRP.

hsCRP 

High-sensitivity C-reactive protein (hsCRP) measures the level of C-reactive protein and is used to detect chronic, low-grade inflammation in the body. 

High hsCRP levels indicate that there may be active inflammation, caused by disease, infection, or cardiovascular issues. This makes it useful in detecting conditions that have yet to surface. Low hsCRP results are generally indicative of good health and low cardiovascular risk.

The Importance of Regular Biomarker Tracking

If you’re still in early adulthood, it may seem unnecessary to be tracking all these biomarkers. In some cases, it might be. But these early years can also be some of the most pivotal when it comes to the diagnosis, early treatment, and intervention of many health conditions. For example, finding a biomarker that’s off in your 20s gives you much more time to fix it and feel better than waiting until you’re in your 60s and needing medical intervention. 

As a general rule of thumb, biomarker tracking is most effective when it is:

• Consistent: Your results should be interpreted using the same methodologies and standards every time.
• High quality: Many services offer low-cost basic scans, but you should be getting the tests that actually matter to your health.
• Interpreted: Quick reports and easy-to-read summaries are helpful, but having someone who can explain what’s going on and how to work with it is far more valuable.
• Ongoing: As you regularly have lab work done, you can see your own changes and trends over time, making it easier to notice when something is off. 

This last point is vital: Many women get their blood drawn to measure their biomarkers at some point, but a single draw doesn’t tell you much in the grand scheme of things — it’s a snapshot that doesn’t tell the story of your changing body. Tracking them over time, however, opens the window to the bigger picture. For some, it may be enough to have bloodwork done once a year; for others, it’s beneficial to have it done every couple of months. 

Along the same vein, this ongoing lab work should be performed by the same reputable provider if at all possible — one that personalizes the test to your body and can see your trends over time. If you constantly go through different healthcare providers, you’re typically stuck with the generic, incomplete gamut of markers. Your results are also usually measured against a general population average, so your results aren’t always very personalized. 

If you’re interested in getting regular, personalized testing, here’s how to start:

1. Choose a provider and start with foundational lab work.
2. Meet with a qualified healthcare provider and talk with them about your results.
3. Make lifestyle, supplement, or prescription adjustments to support the findings.
4. Retest regularly to make changes as needed.

When in doubt, choose a provider that offers these services all in one. 

For example, Lifeforce offers a lot of support and is focused on longevity and overall health, rather than just addressing problems in isolation as they surface. They don’t stop at handing you a lab report. Membership pairs your biomarker testing with both a longevity clinician and a certified health coach so that your results are interpreted in the context of your goals, symptoms, and lifestyle. Your biomarkers are also retested regularly, which means you’re not working from a single snapshot but watching trends unfold and adjusting as your body changes.

Listening to Your Body’s Data

Biomarker tracking is only as valuable as the picture it builds over time. A single blood draw gives you a data point, but consistent testing with a provider who knows your history gives you a story — one that shows how your hormones, metabolism, and inflammation shift through different life stages, stressors, and seasons. That’s what turns numbers on a page into something you can actually act on.

Whether you’re in your 20s establishing a baseline, navigating the hormonal turbulence of perimenopause, or optimizing for longevity in your later decades, knowing what’s happening inside your body is the foundation for every other decision you’ll make about your health.