Sleep deprivation dysregulates autonomic system control, leading to chronically elevated heart rate, disrupted thought patterns, inability to exercise, impaired decision-making, and increased emotional lability.

“being sleep deprived can also really disregulate our control of the autonomic system. I notice on night two or night three of poor sleep, if I'm going through a stressful phase and that's happening, all of a sudden my heart rate is chronically elevated, my thought patterns become really disrupted. I can't then exercise, my decision making is thrown off, my emotionality is more labile.”