Wired, tired, or both: understanding cortisol

Cortisol gets blamed for a lot. But it is not a villain. It helps you wake up in the morning, keeps blood sugar available when you need it, helps regulate inflammation, and prepares you to meet a challenge. It also interacts with your thyroid and sex hormones, which is one reason stress can feel louder during perimenopause and menopause.

What matters is rhythm. Cortisol is meant to rise in the morning and ease through the evening. When stress is prolonged — poor sleep, caregiving, work pressure, pain, hard training without enough recovery — that rhythm can shift.

When stress runs high

Many women describe feeling wired but tired: exhausted, yet unable to fall asleep. Others notice irritability, tension headaches, a racing heart, cravings for sugar or salt, or hot flashes that seem worse on stressful days. Prolonged stress is also associated with more weight gathering around the middle.

When you feel depleted

Other women describe the opposite: fatigue that sleep doesn't fix, feeling flat, leaning on caffeine, crashing mid-afternoon, and less tolerance for stress than they used to have.

An honest note: these experiences have many possible causes, including thyroid changes, low iron, depression, and sleep apnea. They are not proof of a cortisol problem, and true adrenal conditions need a medical diagnosis. If fatigue, dizziness, or palpitations persist, please talk with your physician.

Where I start when you feel wired

• A few minutes of slow breathing each day
• Morning daylight and gentle walks
• Stepping back from high-intensity intervals for a while, while keeping strength training two or three times a week
• An earlier caffeine cutoff — I often suggest late morning
• A real evening wind-down, with less scrolling and stimulation

Where I start when you feel depleted

• Morning light and a breakfast with protein
• Very gentle movement, and slower, steadier strength work
• Protecting eight to nine hours in bed
• Regular meal times
• Fewer stimulants, and building your capacity for stress gradually rather than pushing through

Nourishment matters here too

Big blood-sugar swings add stress to the body. What helps: protein at breakfast, meals that include fat and fiber, magnesium-rich foods such as greens, nuts, and seeds, enough fluid through the day, and less alcohol and sugar.

A word about supplements and herbs

Women often ask me about magnesium, omega-3s, B vitamins, or adaptogenic herbs. Some may help some women, but the evidence varies, and several can interact with medications or aren't right for certain conditions. I only suggest exploring them with professional guidance.

The goal is not to remove stress from your life. It is to help your body move through it and come back to rest — again and again.