Jászi began to immerse herself in the study of physical education in 1910, when she realized that the exercises prescribed by her husband had been instrumental in her successful childbirth after a high-risk pregnancy. She started with the system promoted by François Delsarte, who argued that every physiological symptom had a corresponding psychological condition, and that motion had the power to trigger a psychological shift. The body, to quote Delsarte’s a metaphor, was an instrument played by the soul. Bodily tension, relaxation, and breathing were the three principles on which to build exercises targeting various muscle groups. Delsarte’s method, originally constructed for purposes of training vocalists, attained broad-based popularity. In Berlin and Loftus, Jászi had studied the female physical education basics of Bess M. Mensendieck, who had built on Delsarte’s tenets, focusing on exercises specifically geared toward raising awareness of the female body. Mensendieck equated health with beauty and aimed to maintain a beautiful female body by recommending preventive and corrective exercises. Each class followed the same protocol: the foundation was to achieve the correct body posture, followed by conscious breathing, then specific exercises, and finally relaxation through washing up and skin care.