to the muscles and nerves takes advantage of the generally accepted theory that comes from research on horses which provides indirect evidence of similar neurophysiologic effects in dogs that the pressure on the nerves and tissues causes release of neurotransmitters which appear to have a palliative or calming effect the calming effect aids in humane control without injury to tissues nerves or organs of the animal when properly applied the collar has a very simple geometric form as shown in fig1 such as a 34 fig8 34 when the two loops are laid out the loops are slidably joined in the center and with the muzzle loop freely slidable in the oval center bar ring 15 held by the collar loop by the application of pressure on the leash in substantially any direction pressure is simultaneously applied in areas that provide effective control which from indirect evidence is believed to be related to neurophysiologic action and the release of palliative and calming neurotransmitters fig3 illustrates a form of the invention that shows a slide ring for the muzzle loop where a separable ring is slid onto a separate collar and the muzzle loop passes through the same ring this type of device is adaptable for use on existing dog collars to form a combination collar and muzzle training aid shown at 50 the training aid includes a collar or neck loop 51 and a muzzle loop 52 an adjustable buckle fastener 53 is provided on the collar loop the collar loop is a conventional collar that is continuous and in this form of the invention a slide guide ring indicated generally at 55 is utilized ring 55 is not fastened to sections of the collar but rather the.