Courteney Fisher, who boasts 1.3 million followers on TikTok, was left burned out by popular HIIT classes, which left her feeling ravenous and resulted in binge eating. The fitness influencer decided to create a far gentler exercise routine dubbed "3-2-1", and surprisingly found the pounds dropped off. "The 3-2-1 stands for three days of strength training, two days of Pilates, and one day dedicated toward your cardio work," Fisher stated.