With the right plan and the right discipline, you can get seriously shredded in just 28 days.Read article
Make sure to use light dumbbells and pace yourself. Forty minutes is a long time, and you’ll need to keep a steady pace or risk burning out before the workout is over.
This workout is done in two parts. The first part (exercises 1-10) is a circuit. You’ll do as many rounds of that circuit as you can in 40 minutes. Once the 40 minutes are up, you’ll move on to the second part of the workout (exercises 11 and 12), which is done in conventional straight sets.