A toothpaste having a stimulant added to the formulation for absorption through the gums and membranes in the mouth during brushing for oral hygiene. The infrared detector may have a detection area that is sufficiently narrow to detect primarily the movement of a patient out of his or her bed. The apparatus also includes a central elastic membrane coupled to the body and extending across a central aperture of the body. According to at least one other example, two or more remote antenna units which include respective coverage areas that are non-adjacent to one another can be employed to simulcast downlink transmissions.