561. Ask Dr. G: Healthy Versus Unhealthy Stress, Part 1

Cortisol's Impact

Cortisol, often referred to as the stress hormone, plays a crucial role in our body's response to stress, impacting metabolism, immune function, and overall health. Dr. Sarah Gottfried explains that high cortisol levels can lead to metabolic dysfunction, mood changes, and even increased intestinal permeability, commonly known as "leaky gut" 1. This hormone's dysregulation can result in a cascade of health issues, including high blood pressure and blood sugar levels, as well as muscle breakdown. Jeff Krasno adds that understanding cortisol's role is essential for addressing the physiological effects of stress and trauma 2.

Cortisol is not a democracy; it is a dictatorship, and not a benevolent one when you're out of homeostasis.

--- Dr. Sarah Gottfried

Addressing cortisol dysregulation is vital for maintaining homeostasis and preventing chronic health problems.

   

Cortisol and Sleep

Cortisol levels significantly influence sleep patterns, with dysregulation leading to disrupted sleep and its associated health consequences. Jeff Krasno highlights how cortisol's imbalance can interfere with the sleep-wake cycle, affecting melatonin secretion and circadian rhythms 3. This disruption can result in poor memory consolidation, insulin resistance, and a host of other issues, including mood disturbances and increased cravings for comfort foods. The failure to maintain cortisol homeostasis underscores the importance of managing stress for better sleep quality.

Even one night of bad sleep might result in insulin resistance, failure to activate the glymphatic system, and general infirmities.

--- Jeff Krasno

Understanding and managing cortisol's impact on sleep is crucial for overall health and well-being.