We all know it can be stressful to transition from sleep to wake. Some mornings are worse than others. The alarm rings, we turn it off, and experience an overwhelming desire to go back to sleep. That transition from sleep state to wake state is governed by circadian rhythms. The biological clocks in our cells are shifting cellular function from reparative and restorative modes to active operational modes needed to send us out into the world for another day of survival challenges.