By Esther Han, DO, FACS, FACOS
Head of Hormone Optimization & Pelvic Health, Yunara Life
As interest in longevity continues to grow, conversations often center around biological age, advanced testing, continuous glucose monitors, and emerging therapies. While many of these tools can provide valuable insights, one of the most important drivers of how we feel and function over time remains surprisingly underappreciated: hormone health.
Hormones influence nearly every aspect of human physiology. They affect metabolism, muscle mass, bone density, cardiovascular health, cognitive function, sleep quality, mood, sexual health, and recovery. Because these systems are interconnected, changes in hormone levels can have far-reaching effects on overall wellbeing and quality of life.
In clinical practice, I frequently meet patients who have spent years attributing symptoms such as fatigue, brain fog, poor sleep, low libido, difficulty building or maintaining muscle, changes in body composition, anxiety, or depressed mood to stress, aging, or a demanding lifestyle. While those factors certainly play a role, hormonal changes are often contributing to the picture and are not always evaluated as thoroughly as they should be.
This is particularly true for women.
For many years, hormone replacement therapy became one of the most controversial topics in medicine following the publication of early findings from the Women’s Health Initiative (WHI). The resulting headlines dramatically reduced the use of hormone therapy and left many women with the impression that treatment was broadly unsafe.
What is often overlooked is that our understanding of those findings has evolved significantly over the past two decades. Subsequent analyses and long-term follow-up studies have shown that the risks and benefits of hormone therapy depend heavily on factors such as age, timing of initiation, individual risk factors, and the specific therapy being used. Today, organizations such as The Menopause Society recognize hormone therapy as the most effective treatment for menopausal symptoms in appropriately selected patients and support individualized discussions about its potential benefits and risks.
At the same time, our understanding of menopause and perimenopause has become far more sophisticated. These transitions involve much more than hot flashes and irregular periods. Fluctuations in estrogen and progesterone can influence sleep, cognitive performance, mood, energy levels, metabolic health, and sexual function, often years before menopause officially occurs. Many women are surprised to learn that symptoms they assumed were simply signs of getting older may actually be related to hormonal changes occurring beneath the surface.
Men experience hormonal changes as well. Testosterone levels gradually decline with age, although the rate and impact vary considerably between individuals. Lower testosterone levels may affect strength, recovery, body composition, libido, and overall vitality. Understanding these changes allows for a more informed conversation about both lifestyle interventions and potential treatment options.
One reason hormone optimization is so important within a longevity framework is that hormones sit at the intersection of aging and lifestyle. Sleep, physical activity, nutrition, stress, alcohol consumption, and body composition all influence hormonal health. Likewise, hormonal changes can make it more difficult to maintain healthy habits by affecting energy, motivation, recovery, and resilience.
This relationship works in both directions. Improving sleep quality, building muscle mass, increasing physical activity, reducing excess visceral fat, and managing stress can all have meaningful effects on hormonal function. At the same time, appropriately treating hormonal deficiencies may help patients feel well enough to engage more consistently in the behaviors that support long-term health.
For that reason, I view hormone optimization as an important component of preventive medicine and healthy aging. It deserves the same thoughtful attention we give to cardiovascular risk factors, metabolic health, bone density, and body composition. Measuring hormones, interpreting them in the context of symptoms, and understanding how they fit into a patient’s broader health picture can provide valuable information that helps guide individualized care.
The goal is not to chase laboratory values or recreate the physiology of a twenty-year-old. The goal is to preserve energy, strength, cognitive function, metabolic health, and quality of life as we age.
When approached thoughtfully, hormone optimization can play a meaningful role in helping people not only live longer, but continue feeling like themselves throughout the years ahead.