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.
Dark Shadows is an American Gothic soap opera that originally aired weekdays on the ABC television network, from June 27, 1966 to April 2, 1971. The show depicted the lives, loves, trials and tribulations of the wealthy Collins family of Collinsport, Maine, where a number of supernatural occurrences take place.