Workout 40 min fat burning HIIT WORKOUT Burn 650 calories #Day 67 #Phase 2 By admin - October 23, 2020 0 47 Facebook Twitter Pinterest WhatsApp 40 minutes Fat burning HIIT WORKOUT Burn 650 calories. Day 67 #Phase 2 workouts Woke up at 4am and started doing exercises at 4.30am and continued till … source