Sep 14, 2026 · 1 hr 7 min · 14 segments
Dr Mary Ryan is a Consultant Physician and Endocrinologist and the author of *It's Probably Your Hormones*. In this episode, she joins Brian Keane for a wide-ranging conversation about hormones…
Mary RyanGuest
Brian KeaneHost
If you're sleeping poor, it's impacting ghrelin, it's impacting leptin, it's impacting how hungry you are, how satiated you are, etc.

Not to mention elevated cortisol, which leads to poor food choices and this negative spiral.

So I'm going to ask an impossible question to answer that I could not answer, Mary.

If you're eating excess sugar, right? Excess sugar drives the cortisol pathway, drives the adrenal pathway.

And then I put those frozen blueberries on it because the dietitians said the frozen blueberries are high in vitamin C.

If you're sleeping poor, it's impacting ghrelin, it's impacting leptin, it's impacting how hungry you are, how satiated you are, etc.

Not to mention elevated cortisol, which leads to poor food choices and this negative spiral.

So I'm going to ask an impossible question to answer that I could not answer, Mary.

If you're eating excess sugar, right? Excess sugar drives the cortisol pathway, drives the adrenal pathway.

And then I put those frozen blueberries on it because the dietitians said the frozen blueberries are high in vitamin C.
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