7-Minute Exercise

We've only got 6 7 minutes to save the world exercise. Scientists say these 7 minutes will be "unpleasant" but super effective. I tried it about 7 minutes ago and results? I feel fine. Between each set, I took a 10 second break as instructed, but I feel like I could do this 3 more times. I do want to build my endurance, so maybe this will help.