There's a particular kind of tired I hear about almost every week — from men and women alike. A client sits down across from me — sometimes in person on the East End, sometimes through a screen from their kitchen table in Suffolk County — and they tell me some version of the same thing. Exhausted by 2pm. Wide awake at 1am. Digestion that's changed. Patience that's thinned. They're doing everything "right," and their body still feels stuck in a low hum of overdrive they can't switch off.

For years, the wellness world has called this adrenal fatigue, as if your glands simply wore out like an old engine. I want to be honest with you, nurse to person: that's not quite what's happening, and you deserve the real explanation.

Your nervous system doesn't know the difference between a bear and a backlog of emails.

Your stress response runs through your HPA axis — hypothalamus, pituitary, and adrenal glands, working as a relay team to release cortisol whenever your brain perceives a threat. The problem isn't one stressful day. It's years of this system firing without a true recovery period, until the feedback loop that's supposed to say "we can stand down now" gets blunted. There's nothing broken in you. There's a pattern that's been running too long without an off switch.

Why Midlife Is Different

If you're in your forties, fifties, or sixties — whether you're a woman or a man — there's another layer worth understanding. Your sex hormones play a direct role in regulating your stress response, and both shift in midlife, just differently.

For women, estrogen has receptors throughout the parts of the brain responsible for stress regulation. As estrogen shifts during perimenopause and beyond, that regulation can become less steady — part of why so many women feel their stress response has changed even when their external life hasn't.

For men, testosterone plays a related role in buffering cortisol reactivity. It typically begins a gradual decline starting in your thirties, and as that continues through your forties, fifties, and sixties, some of that natural buffering against stress can lessen too — part of why many men in midlife notice their tolerance for stress isn't what it used to be, even when nothing else has changed.

You're not imagining it, whichever side of this you're on. Your biology is genuinely different than it was ten years ago — and it deserves a different approach than it used to need.