Want a killer workout but don’t have any equipment? Look no further than high-intensity interval training (HIIT) and your own bodyweight for a workout that will get your heart pumping and sweat pouring in no time. This quick HIIT workout will make your muscles burn, and it only takes 12 minutes to complete. The key to making it effective is to work as hard as you possibly can during every interval — if you’re not exhausted by the end, you’re not working hard enough! To read more click here!