Longevity Medicine, Functional Wellness & Anti-Aging Insights from HormoneSynergy®

Creatine is often discussed for muscle, but its role in metabolism is just as important. It may help support glucose handling and insulin sensitivity through its effects on muscle and energy systems.

Creatine is usually discussed in relation to muscle, but it also plays a role in brain energy metabolism. In longevity medicine, that makes it clinically relevant beyond the gym.

Creatine is not just for men or athletes. It may support muscle, recovery, brain energy, and healthy aging in women across the lifespan.

Creatine is not just for athletes. In longevity medicine, it may help support muscle, strength, recovery, and functional aging, especially when paired with resistance training.

Creatine may raise serum creatinine, but evidence shows it does not impair kidney function. Understanding the difference matters.

Supplements can have a legitimate place in longevity medicine, but a longer supplement list is not evidence of better care. Dr. Kathryn Retzler approaches supplementation by asking whether there is a documented deficiency, dietary gap, measurable clinical target, medication-related issue, or other defensible reason to use it, followed by the equally important questions of dose, safety, interactions, quality, and whether it is actually helping.

Medications and hormone therapy are not automatically good or bad. The real question is whether they are clinically appropriate, monitored, individualized, and revisited over time.

Zinc, iron and vitamin D can matter for hair growth, but that does not make them a universal hair-loss stack. Here is what the evidence actually supports, when testing makes sense, and why hair thinning needs to be viewed in the context of hormones, nutrition, metabolism and overall health.

Hair thinning during perimenopause and menopause is common, but “low estrogen” is rarely a sufficient diagnosis. Female pattern hair loss, androgen sensitivity, thyroid disease, iron deficiency, nutritional stress, medications, illness, rapid weight loss, and other forms of alopecia can overlap. A useful evaluation begins by identifying the type of hair loss before deciding whether hormones have anything to do with the treatment.

Hair thinning can sometimes reflect iron deficiency, low vitamin D, inadequate zinc, low protein intake, or aggressive calorie restriction. The important question is whether a true deficiency is present.

Telogen effluvium is a common form of temporary hair loss triggered by stress, illness, or metabolic disruption. This guide explains what causes it and how recovery typically occurs.

DHT plays an important role in androgenetic alopecia, but hair loss is not simply a matter of having “too much DHT.” Genetics, follicular sensitivity, hormone physiology, thyroid function, iron status, nutrition, metabolic health, medications, illness, stress, and life stage can all influence what happens at the scalp.