in a normal person this is what their sympathetic nervous 00:06:45 system activity looks like and people with sleep apnea who are having these difficulties at night this is what their sympathetic nervous system looks like during the day when they're actually not having apnea it's because it's ramped up 00:06:57 and this is a problem that causes their blood pressure to not be able to relax

once we get under stress we hit what they call the sympathetic nervous system the sympathetic nervous system causes a a a stoppage 00:27:18 to the to the digestive system in other words you know with this pure sympathetic is what we call the rest and digest so when you're relaxed you digest food better okay when you're when you're in the skin tense 00:27:31 so what happens is when you get tense the digestive system doesn't function correctly so now you got food in there you need you need you need that acid you need the enzymes to work correctly but nothing's working so you got food 00:27:44 sitting in there that's not getting digested all right so what does it do it's got to go somewhere

The PDMs of this model show promise in revealing the important dynamic characteristics of the underlying physiological mechanisms and allow the formulation of specific quantitative hypotheses about the role of the sympathetic and parasympathetic activity (corresponding to specific PDMs) in cerebral perfusion and autoregulation. Consistent with the widely held view regarding the temporal characteristics of autonomic control of the cardiovascular system, it is posited that the HR PDMs with a resonant spectral peak around 0.2 Hz may be associated with parasympathetic activity, whereas the PDMs with a resonant spectral peak around 0.12 Hz may be associated with sympathetic activity