Cortisol, "The Stress Hormone" Morning Surge: The Hidden Hormonal Boost That Powers Your Day

A pioneering study reveals that cortisol, commonly known as the "stress hormone," has a critical role to play in how the body prepares for daily challenges. The natural surge of cortisol known as Cortisol Awakening response (CAR) occurs some 30-45 minutes after waking and can increase the level of cortisol by 38 percent to 75 percent.

The CAR can activate the hypothalamic-pituitary-adrenal (HPA) axis, preparing the body to face physical as well as mental demands. Investigators propose that this response is crucial for energy mobilization and cognitive alertness. Alterations in CAR may precipitate chronic stress or diseases; therefore, the need for good sleep and stress management is crucial.

Source: PubMed