If there's one thing we've lost in our 24/7, go-go-go way of life, it's rhythm. And I don't mean whether you can bust a move (I'm sure you can). I'm talking about cortisol rhythm. Without a firm rhythm in place, we can feel the imbalance!
Cortisol, a hormone, and one of the main stress response chemicals produced by the adrenal glands—the other is adrenaline—is responsible for maintaining the health of and proper communication between every cell in your body. When it is in a healthy rhythm, cortisol is highest in the morning to give us energy to get our day started, keep inflammation low, and immune response at its peak. It is naturally lowest before bed allowing us to wind down into a rest-and-repair phase. When this natural "diurnal" cycle is disrupted, we can end up with: