Because men and women do not age the same way

For decades, ageing science has largely treated men and women as biologically interchangeable. Yet one of the most consistent findings in longevity research is that ageing trajectories differ significantly between the sexes.

Women live longer than men in virtually every country on earth, yet often experience greater frailty later in life. Men typically exhibit faster biological ageing, earlier cardiovascular decline, and greater epigenetic age acceleration. At the same time, women experience unique ageing dynamics driven by ovarian ageing, menopause, immune remodeling, hormonal fluctuations, and reproductive biology.

The implication is clear:

If ageing biology differs between men and women, biological age testing should reflect those differences.

That is why we are excited to announce a major upgrade to SystemAge™:

Your SystemAge™ report will now be tailored to the gender indicated in your account profile.

This enhancement introduces gender-specific biological age interpretation, system ranking, ageing trajectories, risk assessment, and recommendations designed to better reflect the biological realities of male and female ageing.

Why Gender Matters in Ageing

1. Men Age Faster According to Multiple Epigenetic Studies

Numerous studies using DNA methylation-based ageing biomarkers have found that men consistently show greater biological age acceleration than women.

Researchers from the University of Jyväskylä demonstrated that men were biologically older than women of the same chronological age across multiple leading epigenetic clocks, with the gap increasing as people age[1].

Additional studies from long-lived populations in Europe found greater epigenetic age acceleration in men compared with women, even among exceptionally healthy ageing cohorts[2].

2. Women Live Longer — But Age Differently

One of the most fascinating observations in ageing research is the so-called "female longevity paradox."

Women generally exhibit lower biological age acceleration and longer lifespan, yet often report greater frailty and disability later in life. This suggests that ageing pathways differ substantially between the sexes[3].

Longevity is therefore not simply about how long we live—but how different biological systems age over time.

3. Immune Ageing Is Not the Same

Immune system aging follows different trajectories in men and women.

Women typically exhibit stronger immune responses throughout life, but ageing and menopause can drive unique inflammatory changes and increased susceptibility to autoimmune conditions. Recent research demonstrates significant sex differences in immune remodeling during ageing[4].

This means the same biological signal may have different implications depending on gender.

4. Cardiovascular Aging Differs

Men generally experience cardiovascular ageing earlier, whereas women often undergo a significant shift in cardiovascular risk following menopause due to hormonal changes affecting vascular function, inflammation, and oxidative stress pathways[5].

A single gender-neutral interpretation risks overlooking these biologically meaningful differences.

5. Brain Ageing Is Sex-Specific

Emerging research demonstrates that male and female brains age differently, involving distinct genetic, inflammatory, mitochondrial, and neural maintenance pathways. Researchers are increasingly advocating for gender-specific approaches in cognitive ageing and neurodegenerative disease risk assessment[6].

6. Reproductive Ageing Is Unique

Perhaps the most obvious difference lies in reproductive ageing.

Ovarian ageing affects not only fertility but also cardiovascular health, bone density, metabolism, inflammation, cognition, and overall healthspan. Similarly, age-related decline in male reproductive biology influences hormonal regulation, muscle maintenance, metabolism, and systemic ageing[7].

For this reason, SystemAge™ now includes:

• Female Reproductive System Age (Ovaries & Uterus)
• Male Reproductive System Age (Testes)

Each assessment is based on sex-specific epigenetic signatures associated with reproductive function and aging biology, enabling more accurate evaluation of reproductive system resilience, biological aging trajectories, and personalized intervention opportunities. Reports include sex-specific interpretation and evidence-informed recommendations.[8]

What Has Changed in SystemAge™?

The latest SystemAge™ release introduces:

Gender-Specific Ageing Curves

• Male and female aging entropy trajectories are now modeled independently, reflecting observed differences in biological ageing dynamics[8].

Gender-Specific System Rankings

The same biological profile may result in different prioritization depending on male versus female ageing patterns[8].

Gender-SpecificReproductive Aging Analysis

Dedicated assessment of male and female reproductive aging biology[8].

Gender-Specific Recommendations

Intervention prioritisation and recommendation logic now considers gender-specific ageing biology[8].

Improved Biological Context

Results are interpreted against gender-specific biological baselines rather than a generalised population average[8].

What This Means for Clinicians

Longevity medicine is moving beyond one-size-fits-all biological age testing.

Gender influences:

• Epigenetic aging
• Cardiovascular aging
• Immune aging
• Brain aging
• Metabolic aging
• Hormonal aging
• Reproductive aging
• Response to interventions

A biological age platform should therefore recognise these differences.

SystemAge™ was built to measure biological noise across 21 organs and physiological systems. With the introduction of gender-specific analysis, we are taking another step toward more personalised, biologically relevant longevity insights[8].

The Future of Precision Longevity

Your genetics may be unique.

Your lifestyle may be unique.

And your ageing biology is unique.

Now, your SystemAge™ report reflects an additional reality:

Men and women age differently.

And your biological age assessment should too.

SystemAge™ analyses 460+ epigenetic biomarkers across 21 organs and physiological systems to quantify biological noise, resilience, and ageing dynamics at the organ-system level[8].

Clinicians can now track treatment efficacy and clients' progress longitudinally with greater precision.

Interested in learning more?

Order your SystemAge™ here >>

Become a provider, click here >>

Book a 30 min. call with our team >>

Download a sample report here >>

Sources:

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC9434475/?utm_source=chatgpt.com

[2] https://healthyaging.med.ubc.ca/news/new-study-examines-differences-in-epigenetic-age-between-men-and-women-from-high-longevity-regions?utm_source=chatgpt.com

[3] https://pmc.ncbi.nlm.nih.gov/articles/PMC8118651/?utm_source=chatgpt.com

[4] https://www.news-medical.net/news/20260411/Study-reveals-immune-aging-differs-significantly-between-men-and-women.aspx?utm_source=chatgpt.com

[5] https://www.frontiersin.org/research-topics/16433/sex-differences-in-molecular-mechanisms-of-cardiovascular-aging/magazine?utm_source=chatgpt.com

[6] https://arxiv.org/abs/2505.20344?utm_source=chatgpt.com

[7] https://nypost.com/2026/05/29/health/ovaries-age-fast-inside-the-push-to-extend-their-longevity/?utm_source=chatgpt.com

[8] https://cdn.shopify.com/s/files/1/0788/9292/5167/files/SystemAge_testkit.Action_plan.jpg?v=1780222109