One of the most common things I hear in my practice is some version of: "I'm exhausted, but I can't fall asleep." If that sounds familiar, cortisol, your main stress hormone, is often at the center of it.
When we're stressed, cortisol rises to give us the energy to deal with whatever's in front of us. It changes the way sugar is used, and shuts certain body systems off while turning others on. Cortisol saves us from the "stressors," and once things settle, the body can repair itself. But with chronic stress, cortisol stays elevated for too long, the body doesn't get the chance to repair, and eventually you burn out.
Cortisol is secreted from the adrenal glands (small glands that sit on top of the kidneys). The term "adrenal fatigue" isn't a formal medical diagnosis, but it's a helpful shorthand for what's really happening: it's not that the adrenal glands themselves are "tired," it's that cortisol production and rhythm have become dysregulated from prolonged stress.
Common signs of cortisol dysregulation ("adrenal fatigue")
- Morning fatigue: You don't really seem to "wake up" until 10 a.m., even if you've been awake since 7 a.m.
- Afternoon "low": Feelings of sleepiness or clouded thinking from 2 to 4 p.m.
- Burst of energy around 6 p.m: You finally feel better from your afternoon lull.
- Sleepiness around 9 to 10 p.m: But you resist going to sleep.
- "Second wind" around 11 p.m: This lasts until about 1 a.m., when you finally go to sleep, or you wake around 1 a.m.
- Cravings for foods high in salt and fat.
- Increased PMS or menopausal symptoms.
- Low mood.
- Lack of energy.
- Decreased ability to handle stress.
- Muscular weakness.
- Increased allergies.
- Lightheadedness when standing up from sitting or lying down.
- Decreased sex drive.
- Frequent sighing.
- Difficulty tolerating foods high in potassium or carbohydrates unless combined with fats and protein.
The good news: when you decrease stress and support the adrenal glands, the body can begin to function normally again, and your energy returns.
Supporting cortisol balance and energy
- Eat a natural whole-foods diet, lowering refined carbs and increasing healthy fats, with quality water and sea salt instead of tap water and table salt.
- Support key nutrients: Vitamin C, a high-strength B-complex, and adaptogenic herbs.
- Support detoxification, such as infrared sauna use and reducing toxic exposures in your home and personal care products.
- Prioritize rest and gentle movement, avoiding intense exercise that further depletes energy.
- Get some daily sunlight, and make time for something enjoyable each day.
- Practice stress-reduction techniques like Heartmath breathing, and set boundaries with people or situations that add unnecessary stress.
- Acupuncture and herbal medicine: often one of the quickest and most effective ways to help rebalance the body.
Frequently Asked Questions
What's the difference between being tired and having "adrenal fatigue"?
Everyone feels tired sometimes. Cortisol dysregulation tends to follow a distinct pattern: fatigue that doesn't improve with rest, an energy crash mid-afternoon, and a "second wind" late at night that makes it hard to fall asleep even though you're exhausted.
How long does it take to feel better?
This varies significantly by person, depending on how long the stress has been ongoing and what else is involved (diet, sleep, emotional patterns). Many people notice initial improvements within a few weeks of consistent support, with fuller recovery taking longer.
Can I fix this with supplements alone?
Supplements like adaptogenic herbs can help, but lasting change usually requires addressing the underlying stress, sleep, and diet patterns together, which is why an individualized plan works better than a one-size-fits-all supplement routine.