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  • Cortisol and intermittent fasting: How to balance hormetic stress and recovery
    Cortisol

    Cortisol and intermittent fasting: How to balance hormetic stress and recovery

    Fasting can build metabolic resilience when aligned with the body’s diurnal cortisol curve. Short, recoverable stress supports energy balance and repair, while chronic elevation undermines it. Because fasting isn’t one-size-fits-all—especially for many women—tracking cortisol levels with Hormometer™ helps reveal when your routine drives adaptation and when it signals overload.

  • How Cortisol Shapes Energy, Weight, and Digestion
    Cortisol

    How Cortisol Shapes Energy, Weight, and Digestion

    Cortisol connects stress, energy, and metabolism. When balanced, it supports focus and digestion; when elevated, it slows metabolism and redistributes fat. This article breaks down how stress reshapes energy use—and how visualizing cortisol with Hormometer™ can help restore balance.

  • How Cortisol and Facial Aging Intersect
    Cortisol

    How Cortisol and Facial Aging Intersect

    Discover how cortisol—the body’s key stress hormone—links energy, recovery, and skin health. When balanced, it supports focus and repair; when elevated, it accelerates aging by breaking down collagen. Explore how biohackers use cortisol insights to fine-tune habits like cold exposure, red light, and sleep for healthier skin and sustained vitality.

  • Ever Feel Like Your Wearables Are Lying to You?
    Cortisol

    Ever Feel Like Your Wearables Are Lying to You?

    Wearables show activation; Hormometer™ shows recovery. Adrenaline drives short-term stress, while cortisol reveals how well your body resets. Together, they give a fuller view of balance and resilience.

  • Dr. Andrew Huberman on Cortisol and Burnout
    Cortisol

    Dr. Andrew Huberman on Cortisol and Burnout

    Dr. Andrew Huberman explains why cortisol is an energy-deploying hormone, not just a stress signal. Learn how daily habits shape your rhythm, and how Hormometer™ helps you track snapshots to visualize patterns in stress, sleep, and focus.

  • Cortisol, Training, and Recovery: Understanding the Balance Between Stress and Performance
    Cortisol

    Cortisol, Training, and Recovery: Understanding the Balance Between Stress and Performance

    Cortisol plays a central role in training, stress, and recovery. Learn how balanced exercise supports resilience, while overtraining disrupts natural cortisol rhythms and slows progress. 

  • Understanding Cortisol: Ranges, Variability, and Why Tracking Matters
    Cortisol

    Understanding Cortisol: Ranges, Variability, and Why Tracking Matters

    Discover how cortisol rhythms shape stress, sleep, and energy, and why tracking patterns with Hormometer™ provides clearer hormone insights.

  • Stress, Menopause, Perimenopause and the Influence of Cortisol
    Cortisol

    Stress, Menopause, Perimenopause and the Influence of Cortisol

    Cortisol’s daily rhythm guides sleep, energy, and stress. During perimenopause and menopause, this rhythm often shifts, sometimes running higher at night or flatter across the day. 

  • Cortisol Hormometer™ 101: The Ultimate Guide
    Cortisol

    Cortisol Hormometer™ 101: The Ultimate Guide

    This guide walks you through how to confidently use Hormometer™—from understanding cortisol and running your first test to avoiding common mistakes and unlocking powerful insights over time.

  • The "cortisol cocktail" hack is going viral. Is it help or hype?
    Cortisol

    The "cortisol cocktail" hack is going viral. Is it help or hype?

    Viral “cortisol hacks” reflects a deeper issue: widespread symptoms of cortisol imbalance, and a lack of tools to understand them. While hydration can play a supportive role, the real story is more complex.

  • Five Ways to Balance Your Cortisol
    Cortisol
    Hormones 101

    Five Ways to Balance Your Cortisol

    Keeping your cortisol in balance is one of the most effective ways to maintain energy levels throughout the day.

  • Cortisol: How to Identify and Manage Stress
    Cortisol
    Hormones 101

    Cortisol: How to Identify and Manage Stress

    Cortisol is supposed to be helpful, but in a world of fragmented attention, it doesn't know when to quit.

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How do I use the Eli Hormometer™?

Watch this video for step-by-step instructions on using the Eli Hormometer™

The award-winning instant cortisol testing system is now available.

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