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Longevity Medicine

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

Welcome to the HormoneSynergy® Longevity Blog — your nationwide resource for evidence-based longevity medicine, functional wellness, bioidentical hormone optimization, GLP-1 weight loss strategies, and physician-formulated supplement guidance. Led by Dr. Kathryn Retzler, our expert-driven articles translate advanced clinical science into practical strategies that help individuals across the USA extend healthspan, optimize metabolic performance, balance hormones, and proactively support vibrant, resilient aging.

  • Weight Loss for Longevity™ - GLP-1 Weight Loss Program in Portland and Lake Oswego Oregon

    by Daniel Soule

    This presentation is a comprehensive overview of weight loss, framing obesity as a chronic disease with complex origins, including biological, genetic, environmental, and behavioral factors. It discusses the significant health risks associated with being overweight or obese and underscores the challenges of long-term weight management due to the body's physiological adaptations.

    Posted in Weight Loss Doctor Oregon

  • DEXA Bone Density Scan and Visceral Fat Analysis Portland (Lake Oswego), OR

    by Daniel Soule
    At HormoneSynergy® / RetzlerRx™, we are committed to providing comprehensive and advanced services to support your overall health. Our specialized ...

  • Can I Purchase Bioidentical Hormones or Testosterone online?

    by Daniel Soule
    Should I Buy Bioidentical Hormones online?Purchasing bioidentical hormones or testosterone online without a proper medical evaluation and prescript...

  • Considerations regarding the online prescribing of Bioidential Hormone Replacement Therapy

    by Daniel Soule
    Considering online services for hormone replacement or testosterone therapy? Be aware of significant risks, including inaccurate diagnosis, improp...

  • What are the benefits of 1.5 ATA HBOT Therapy with Oxygen Concentrator

    by Daniel Soule
    Hyperbaric Oxygen Therapy (HBOT) involves breathing pure oxygen in a pressurized chamber. An oxygen concentrator is often used to provide the pure ...
    Posted in hbot, Hyperbaric

  • Revian® - The Right Light for Hair Growth™

    by Daniel Soule

    REVIAN hair growth devices utilize a patented Dual-Wavelength Technology that combines red (660 nm) and orange (620 nm) light emitted from medical-grade LEDs. This specific combination and the use of LEDs are key reasons why REVIAN positions itself as an effective light therapy for hair growth. 

    Posted in Hair Loss

  • So You've Purchased a Stelo Continuous Glucose Monitor. How Do you set it up?

    by Daniel Soule
    By consistently using the SteLo CGM and pairing it with a healthy lifestyle, you’ll have a powerful tool to help manage insulin resistance, keep your blood sugar in check, and reduce the risk of complications like type 2 diabetes.

  • I don't have diabetes. Should I wear a Continuous Glucose Monitor (CGM)?

    by Daniel Soule
    A CGM like SteLo can be a game-changer in understanding and managing insulin resistance by providing continuous and personalized feedback on your lifestyle choices. This real-time data helps make informed decisions to improve insulin sensitivity and overall metabolic health.

  • Type 2 Diabetes. Is it reversible?

    by Daniel Soule
    While complete "reversal" of type 2 diabetes may not be possible for everyone, many individuals can achieve significant improvements in their condition and may even reach normal blood sugar levels with sustained lifestyle changes.

  • Beyond Insulin Resistance - Pre-Diabetes

    by Daniel Soule
    Prediabetes is often seen as the precursor to type 2 diabetes and is defined by blood sugar levels that are higher than normal but not yet in the diabetic range. This condition frequently develops as a result of prolonged insulin resistance

  • Best Longevity Supplements for Healthy Aging, Energy & Vitality

    by Daniel Soule

    Explore the best longevity supplements for healthy aging, energy, and vitality at HormoneSynergy®. From Resveratrol and NMN to CoQ10 and Omega-3s, learn how clinically studied nutrients can support cellular health, cardiovascular function, and overall well-being as part of a proactive aging strategy.

  • What is Immunosenescence and how can you slow it?

    by Daniel Soule
    Immunosenescence refers to the gradual decline in the immune system's function as a person ages. This decline affects both the innate and adaptive branches of the immune system, making older individuals more vulnerable to infections, chronic diseases, cancer, and less responsive to vaccines.
    Posted in DHEA, Estrogen, Immunosenescence, testosterone