How long can you last on the stairmaster I used to be able to do 30 minutes but I went like a whole two years without doing it so right now I can only do between 20 to 25 minutes

Oh, this is a good question. 20 minutes is my max. Like, I cannot, I mean, I cannot go longer than that.

Say like probably about 30 minutes if I'm doing intervals if I start really slow and then work my way up to my intensity and then so myself back down and then go back up so I'd like to do it in intervals and then at the very end I just make it really really chill

Honestly, one minute and I'll be dying by that minute.