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.
How to Keep Darks Dark. During the wash cycle, articles of clothing collide with one another and the washer's interior, which causes some of the fibers in the fabric to break, exposing the raw fiber ends. This friction disrupts the surface of the fabric, tricking the eye into seeing less color.