Jack Guillory, son of Jim Guillory, was introduced to Muscle Activation Techniques by his father early on in his career as a competitive high school wrestler. MAT became an enormous competitive advantage for Jack due to the physically demanding nature of the sport of wrestling. Witnessing first-hand the benefits that could be attained from a skilled MAT practitioner sparked in him a major interest in human sciences, specifically MAT.

In 2007, Jack joined the U.S. Army as an Airborne Infantryman and served as a Paratrooper in the 82nd Airborne Division for 4 ½ years. Jack regularly conducted intensive training during his service, including airborne operations and rigorous physical activity, and was deployed to Iraq for one year in support of Operation Iraqi Freedom. The highly physical and stressful nature of Jack's military occupation inevitably led to an even greater appreciation and understanding of the importance of Muscle Activation Techniques and its ability to improve and sustain the healthy function of the human body. As a show of his discipline, versatility in skills, and ability to learn and perform, Jack was appointed to the 82nd Airborne Division's All-American Chorus for the last year of his service and traveled the country performing as a recruitment tool for the Army.

After an honorable discharge from the U.S. Army in 2011, Jack began his education in health and human sciences. Since then, Jack has earned an Associates of Science degree, a certification as an Advanced EMT, a Bachelor of Science in Fitness and Human Performance, and a certification as a Muscle Activation Techniques Specialist. Jack also spent the last year of his education interning and studying under his father, gaining wisdom and experience and greatly benefiting his skills, knowledge, and insight in regards to MAT and the human body.