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: Complete Original Series Relive every compelling moment of the beloved gothic soap opera in this 131 disc set featuring all 1,225 episodes of the original Dark Shadows, over 120 video interviews with the cast and crew, bloopers, and a virtual treasure trove of bonus materials.