 Contemplation phase is people are aware that exercise is good for them, but they're really not ready to make any sort of behavior change. And then there's the action phase. These are the people that are actively doing the activity that you want them to do, exercise, right? And then there's the maintenance phase where this is when they've been doing it for six months, right? And six months is kind of in my mind that critical cutoff, because we tend to see in, for example, diet studies, right? Diet adherence after six months tends to plateau. It's like 85% or something like that of people end up regaining the lost weight.