Everyone is talking about the cost of living right now. Groceries. Insurance. Rates. You can name your figures to the dollar.
But there’s another cost you’ve been paying every single day, and I’d bet you’ve never itemised it.
The cost of living tired. I want you to picture a woman I see in clinic every week. She’s smart. She’s capable. She runs a household, a job, sometimes a business, often other people’s emotions. By 2:47pm she’s standing at the pantry looking for something — she’s not sure what, but it’s probably sweet. She reads the same email three times before it goes in. By 7pm she’s short with the people she loves most, and by 9:30 she’s promising herself tonight will be different.
If that’s you, I want you to know something as a clinician: that version of you is expensive. And your body has been keeping the receipts.
Here’s what living tired actually costs — physiologically.
Your blood sugar. Research shows that restricting sleep to around five hours a night reduces insulin sensitivity by up to 25% — within days, in otherwise healthy adults. That’s why the cravings hit mid-afternoon. That’s part of why weight settles around your middle even when your eating hasn’t changed. Your cells are handling glucose differently on short sleep, and willpower sits a long way downstream of that.
Your appetite hormones. After short sleep, ghrelin — your hunger hormone — rises, while leptin — the hormone that tells your brain you’ve had enough — falls. You’re genuinely hungrier and genuinely less satisfied. Your body is doing the maths on an energy shortfall and sending you to the quickest fuel it knows.
Your stress chemistry. Cortisol is meant to run a clean daily curve — high in the morning to get you up, low at night to let you down. Living tired flattens that curve. So you drag through the morning, then feel strangely switched-on at 10pm. If you’ve ever said “I’m exhausted but I can’t switch off,” you’ve just described a flattened cortisol slope out loud.
Your brain. Deep sleep is when your glymphatic system — quite literally your brain’s rinse cycle — clears the metabolic waste that builds up across the day. Shortchange deep sleep and the residue is what you experience as brain fog: the lost word, the missed detail, the “why did I walk into this room.”
Your repair. The largest pulse of growth hormone you’ll get all day arrives in your first cycle of deep sleep. That’s tissue repair, immune function, recovery from exercise. Miss the deep sleep and you miss the repair window — which is why living tired ages you from the inside out before it ever shows on your face.
Now here’s the part that matters
Now here’s the part that matters, especially if you’re a woman somewhere between 35 and 60.
Sleep changes in these years for real, physiological reasons — hormonal shifts alter how your brain accesses and holds deep sleep. Which means the tools that used to work (earlier nights, no screens, chamomile tea) stop being enough, because they were never addressing the actual driver.
Coffee has been covering the shortfall. Coping has been covering the cost.
But a bill deferred is still a bill. And the beautiful thing about physiology is that it responds — quickly — when you address the right lever in the right order.
That’s exactly what I do inside The Sleep Recovery. We identify what’s actually sabotaging your sleep — because it’s different for the woman who’s tired but wired than it is for the one whose mind starts a committee meeting at 3am — and then we restore it, step by step, until deep sleep, steady energy and a clear head are yours again.
Living tired has cost you enough.
Warmly,
