Collab Invent on Instagram: "A simple idea… turned into a $175 MILLION fitness phenomenon. The Simply Fit Board started as a $35 plastic balance board — but today, it’s one of Shark Tank’s biggest success stories ever, with over $174M in lifetime sales. Designed for anyone who wants a quick, effective home workout, this lightweight curved board lets you twist, plank, squat, and balance your way to a stronger core and toned muscles—without needing a full home gym. 🔥 Why it blew up: • Super affor

The History Source on Instagram: "In the 1950s, the bongo board became a brief fitness fad, combining balance training with a sense of fun. The simple board-and-roller setup was marketed as a way to get in shape. Balance board training has remained a go-to exercise for improving coordination and core strength, but this vintage footage reminds us that fitness fads are far from a modern trend. From 80s-era jazzercise to the hula hoop craze of the 1920s, the pursuit of staying fit has sparked creat