They do! You're supposed to do two rounds of both, at least how I figured it. Generally you can set your own intervals and even total health, if you wanna play 300,000,000HP Planet. Eagle eyed readers may notice the health total in the book adds up to more than 10 Million, at least at the time of this comment. Honestly that was a mistake but I thought it was so funny that I'd done all this Branding around it being 10 Million, then fucked up the maths, that we wanted to keep it in till it was noticed. May or may not actually fix it.