Individuals who do not recover well from intense physical activity should shuffle activities like weight training or running across different days.

“So another reason for not necessarily performing all six is that some activities probably shouldn't be performed each day. For instance, in my case, if I were to weight train or even run every day, I'm of the sort or my biology is of the sort that I don't recover so well. So I wouldn't want to do resistance training every day, but I might want to do it four days a week, for instance. So by having six things in that list, I could shuffle out that particular activity on particular days of the week and simply do four or five other activities.”