For me, if I have dismounted the bike then that is definitely a break. If I stopped with feet on the ground so that I catch my breath and get my heart rate down, or stop for a recreational purpose (enjoy the scenery, pet a horse, rest in the shade etc.) then that is a break. If I stop for a traffic light or to make a quick adjustment, figure out directions etc and quickly get back to riding then I do t consider that to be a break.