Simon Diamond
Latest articles by Simon Diamond
![Man doing a dumbbell workout](https://cdn.mos.cms.futurecdn.net/yisoiYqB8vqz8yyC5mbUtm-320-80.jpg)
Build muscle and boost your metabolism in just 7 moves with this dumbbell HIIT workout
By Simon Diamond published
This short routine is designed to raise your heart rate, boost your metabolism, and work your whole body for muscle-building, fat-burning results in just 25 minutes.