🎬 Fact: The Slenderizing Salon (1940s) This vintage footage showcases the “high-tech” fitness trends of the WWII era, where the philosophy of exercise focused more on passive “vibratory massage” than active effort. The machines shown, such as the motorized belt massagers and rolling chairs, were based on the era’s popular belief that fat could be “shaken” or “kneaded” away without the need for strenuous movement. These salons were marketed as a way for women to maintain their figures while bala