The Arcadian Rhythm and Our Evolutionary Alarm Clock If you are someone who wakes up not to a gentle sunrise but to the internal blare of an alarm clock you never set, you are intimately familiar with the morning cortisol spike. This surge, a core component of your circadian rhythm, is an evolutionary masterpiece designed to propel you from sleep to action . It regulates metabolism, decreases inflammation, and provides a burst of glucose from your liver for fast energy, priming your body and mind to face the day’s demands . In essence, it is your body’s way of making you bright and aware first thing in the morning. However, for many—especially those with conditions like CPTSD—this physiological marvel can be misinterpreted by the mind. What the body intends as preparatory energy can feel like hypervigilance or free-floating anxiety. The hormone that is meant to be a tool for engagement becomes a source of distress. This is not a sign of weakness; it is a sign of a system that is workin...
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