Mexican authorities announced a decision to end the academic year earlier than planned because of the World Cup and a heat wave. But the decision sparked backlash from parents' groups and teachers.
This 30-minute interval workout series is fantastic for improving cardio, endurance, and speed. There are 3 sets of 5-minute runs followed by a short sprints. The sprints get 30 seconds longer as you go. BPM CHART: 5 min. @ 150 BPM (warmup) 5 min.…