Iron Bodyfit is a network of boutique fitness studios built on electrical muscle stimulation (EMS). The client trains in a special suit that engages the muscles more deeply through electrodes than ordinary movement, so a short session replaces a substantially longer classic workout. It started in France, and it differs from a regular gym in every way that matters: no rows of machines and no anonymous membership, but a small studio, a booked time slot, and a personal trainer who guides you through the whole session. It bets on people who want a result and don't have hours a day.