When most people think about preventing serious illness — heart disease, stroke, cancer, dementia, Alzheimer’s — they think about cholesterol numbers, family history, maybe a yearly physical. They almost never think about their adrenal glands. And that is one of the biggest blind spots in modern health. 

Your adrenals are two small glands that sit on top of your kidneys, and they are central to how your body handles stress, regulates blood sugar, controls inflammation, manages energy, and stabilizes your mood. They produce cortisol, adrenaline, DHEA, and aldosterone — the hormones that essentially decide whether your body is in a state of repair or a state of breakdown. When your adrenals are functioning well, your entire system has a fighting chance. When they’re not, the whole foundation gets shaky. 

Here’s the part most people don’t connect: when the HPA axis — the communication loop between your brain and your adrenals — gets dysregulated, the first thing that goes is your blood sugar. Cortisol’s job is to raise blood sugar in moments of stress so you have fuel to respond. But when you’re stressed all day, every day, your body is pumping out cortisol around the clock, and your blood sugar is being pushed up over and over again. Eventually your cells stop responding to insulin the way they should. That’s insulin resistance. That’s metabolic dysfunction. And metabolic dysfunction is the soil that grows the diseases we fear most — type 2 diabetes, cardiovascular disease, stroke, many cancers, and the cognitive decline we now see linked to insulin resistance in the brain. 

In other words, the path from chronic stress to chronic disease runs straight through your adrenals. If you want to prevent the big diseases, you cannot ignore them. 

And here is the uncomfortable truth: the majority of people walking around today do not have healthy, well-regulated adrenals. We were never designed for the lives we’re living. We were built to handle short bursts of stress — a real threat, a hard moment, and then recovery. Instead, we’re running on a constant low-grade emergency signal. Phones buzzing. Inboxes overflowing. Bills, news cycles, undersleep, overcaffeination, processed food, traffic, schedules that don’t leave room to breathe. Your adrenals can’t tell the difference between a tiger and a tense email. They just keep responding. 

So how do you know if your adrenals are struggling? There isn’t a standard lab that picks this up, but there are functional labs that do. The one I recommend most often is an Adrenal Stress Index test, which measures your cortisol rhythm across the day and shows you exactly how your adrenals are firing — or not firing — at the times they should be. That kind of testing gives you real data to work with. But you don’t need a lab to knowsomething is off. Your symptoms will tell you. The biggest one is fatigue — a deep, persistent tired that doesn’t resolve with sleep — paired with a lack of drive, that low-grade “blah” feeling where nothing has its usual spark. Weight that won’t come off no matter what you do. A constant sense of being on edge, always at capacity, with no resilience for the next thing life hands you. Getting sick more often than you used to. And that low, simmering feeling of inflammation in the body that you can’t quite put your finger on but you know is there. 

This is not a personal failing. This is biology responding exactly the way it’s supposed to in an environment that is asking too much of it. The good news is that the adrenals are remarkably responsive when you actually support them. Blood sugar stabilizes. Sleep improves. Energy returns. Resilience comes back. And as that foundation rebuilds, your risk profile for the most common chronic diseases starts to shift in your favor — because you’re finally addressing the root rather than chasing symptoms. 

If you take one thing from this, take this: your adrenals are not a side issue. They are not a wellness buzzword. They are one of the most important systems in your body when it comes to long-term disease prevention, andsupporting them is one of the most powerful things you can do for your future health. 

This is exactly why I’m launching my Hormone Series. I’m bringing in a couple leading adrenal experts, and we are going to learn how to heal our adrenal glands together — and actually put it into practice as a community inside my Inner Circle. The Hormone Series starts at the end of May, and registration opens to the public Monday, May 4th. All of this happens inside the Inner Circle, which is $25 a month if you join annually, or $35 a month if you join monthly. This series is going to be life-changing! 

Watch for the registration email — every series I’ve done has filled quickly, and I think this one is going to fill even faster.