I thought of a way to explain a "stress grow" in a way ya'll can all understand. Stressing your plants is how to tell them that you want them to grow good weed. When your plants flowers (the ovaries) are deprived of pollen (sperm), they bud out bigger and tastier, trying to get pollinated because they think they are going to die (via 12-12, which represents the solstice and the coming of winter, which stresses your plants out and makes them flower in the first place). The more the plant THINKS it is going to die, the danker it will be, as long as it still has the means to be dank (enough water, proper light & nutrients). But if you stress the plant too hard and mess up to the point of no return (mess up light, watering etc) it will hermie, or die.