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Dr. Benjamin Bikman delves into the profound relationship between sleep and metabolic health, emphasizing the critical role sleep plays in maintaining insulin sensitivity and overall metabolic function.

Ben explains that deep sleep is a restorative phase during which the body repairs cells, regulates hormones, and improves insulin sensitivity. Poor sleep, however, disrupts these vital processes, leading to hormonal imbalances that elevate cortisol levels and reduce melatonin production.

Elevated cortisol, a stress hormone, promotes gluconeogenesis and insulin resistance, while insufficient melatonin—a hormone essential for regulating sleep—negatively impacts insulin sensitivity and glucose metabolism. This disruption creates a cycle of metabolic dysfunction, increasing the risk of conditions like type 2 diabetes and obesity.

Dr. Bikman highlights actionable strategies to improve both sleep and metabolic health. He stresses the importance of avoiding high-glycemic meals before bed, minimizing exposure to blue light from screens, and maintaining consistent sleep schedules.

He also discusses how ketones, especially in athletes after intense exercise, have been shown to improve sleep efficiency and REM sleep duration.

For individuals struggling with sleep, Dr. Bikman explores the potential benefits of melatonin supplementation and exogenous ketones, underscoring the need for personalized approaches. By addressing evening habits and understanding the hormonal interplay between sleep and metabolism, individuals can take meaningful steps to enhance both sleep quality and metabolic health.

This episode of The Metabolic Classroom provides valuable insights into how optimizing sleep can significantly improve overall well-being.

Timestamps:

(00:45) – Introduction to Sleep and Metabolic Health

(01:22) – Why Sleep is Essential for Insulin Sensitivity

(04:20) – How Cortisol Disrupts Sleep and Metabolism

(08:10) – The Unexpected Role of Melatonin in Metabolism

(19:35) – How Late-Night Eating and Blue Light Harm Sleep

(23:40) – Can Exogenous Ketones Improve Sleep Quality?

(28:20) – Practical Tips for Better Sleep and Metabolic Health

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