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 based on the television soap opera 'Dark Shadows' (1966-1971). The screenplay for the movie was developed by American screenwriters Seth Grahame-Smith and John August. Paperback Library published a successful series of Gothic-themed novels based on Dark Shadows in 1966.