Adrenals, Cortisol, and Blood Sugar: The Mechanism Behind Sleep Problems

This podcast episode delves into the intricate relationship between adrenal function, cortisol, blood sugar regulation, and sleep quality. Dr. Ekberg explains that the adrenal glands, located atop the kidneys, are crucial for the body's stress response, producing hormones like adrenaline and cortisol. Cortisol, a key stress hormone, increases blood sugar for immediate energy and directly opposes melatonin, the sleep hormone produced by the pineal gland. While cortisol is essential for maintaining blood sugar overnight and waking us up in the morning, its natural rhythm dictates it should be lowest at bedtime to allow melatonin to rise and induce sleep.\n\nThe core problem highlighted is the widespread instability of blood sugar in modern society, primarily due to the consumption of refined foods, excessive sugar, and simple carbohydrates. These foods cause rapid blood sugar spikes followed by crashes (hypoglycemia). Each episode of hypoglycemia is perceived by the body as an emergency, triggering a release of cortisol. This constant demand for cortisol throughout the day and night overworks and fatigues the adrenal glands, disrupting their natural, predictable rhythm.\n\nWhen the adrenal glands are fatigued and cortisol rhythms become irregular, the body experiences cortisol spikes at inappropriate times, particularly during the night. These nocturnal cortisol surges actively suppress melatonin, leading to frequent awakenings in the middle of the night. The speaker emphasizes that many individuals who wake up during the night are doing so because of these underlying blood sugar imbalances and the subsequent cortisol dysregulation, rather than primary sleep disorders.\n\nThe long-term solution proposed is to stabilize blood sugar through significant dietary changes. This involves eliminating refined foods, processed foods, sugar, grains, pasta, and similar items that initiate this vicious cycle. By consuming "real food," individuals can achieve stable blood sugar levels, allowing the adrenal glands to rest and the natural cortisol-melatonin rhythm to re-establish itself, thereby promoting natural, uninterrupted sleep. Relaxation practices are also mentioned as a complementary strategy once dietary foundations are in place.

cortisol and melatonin are directly opposed to each other meaning cortisol will turn off melatonin and vice-versa but cortisol is always going to have the upper hand because it risks Bonz to stress

cortisol is supposed to be the lowest when you go to sleep because presumably you have fed yourself during the day so your blood sugar is is high and your cortisol is low because it's not needed to produce blood sugar and because cortisol is low it allows your melatonin to be high and put you to sleep

during the night your blood sugar drops because you're not eating and now the body has to create blood sugar from other sources and cortisol is the signaling molecule that does that

the problem now is that we don't have stable blood sugar anymore in our society because we have introduced too many refined foods too much sugar too much carbohydrate grains and pasta and all those things that stimulate the trigger blood sugar

whenever it's at a low whenever we have a valley that's called hypoglycemia and guess what now the body releases cortisol because your blood sugar is low

the more fatigue the adrenals are and the more we invoke cortisol during the day the more irregular our cortisol rhythms are going to be

a lot of people wake up in the middle of the night because of blood sugar imbalances

The long-term solution of course is to stabilize blood sugar stop eating refined foods and processed foods and sugar and grain and pasta and donuts and all those things because that's what sets up this vicious cycle in the first place