The body has mechanisms to alter or maintain blood pressure and blood flow. There are sensors that sense blood pressure in the walls of the arteries... My WebMD Sign In, Sign Up
Perhaps while we're not watching, the denizens of Dark Shadows carry-on, caught in another inter-dimensional wing of Collinwood. If you peer out the corner of your eye, you may catch a glimmer of this shadowy activity, perhaps in Dark Shadows Collection 14, or Dark Shadows Collection 22.
The story of Dark Shadows begins with newly hired governess Victoria Winters arriving at Collinwood, the Collins' estate in Collinsport, Maine in search of her mysterious origins. She soon is caught up in the strange events and mysteries that seem to surround the Collins family.