• a good high-intensity interval training (HIIT) session, and exercise variation is key for better muscle development and fat loss. But what exactly do these all-out techniques do for your body? We asked trainer, Socanomics creator, and fitness model Selena Watkins to explain how HIIT can help you get sculpted and lean. The methods: Tabata (20 seconds on, 10 seconds off; four minutes); EMOM (Every Minute On the Minute); and AMRAP (As Many Rounds As Possible). Watkins
