HIIT is one of the most popular methods of losing weight at the moment. The reason it has gained so much popularity is because you don’t need to slave in the gym for several hours to get the results you want. In fact you can get an intense workout in just 7 minutes as this video will show you. Don’t be fooled by the length of the workout – HIIT are meant to ask 100% effort from you and squeeze it in the shortest amount of time possible. You just have to try this out!