Parents are the god of the child. They provide every  thing for the children for which they are looking for. So when children grow up they also take some good care of the parents because after some time they also going to be parents. And if they do not care their parents and take them lightly, it may happen that their children will behave same as, as they behave with their parents.

  Then they remember all those things which they already did with their parents, and thinks everything happening with us is all right. So try to avoid these thing and keep your parents happier in their life so that you will also keep remain happy in your future. So these exercises for your future. And results will infront of you after sometime.