The effects will be felt for a lifetime. In the same way that no two people have the same face, no two persons breathe in the same manner. Everyone breathes his own way. Usually very badly. Maybe I could learn.
Some people even try.
But maybe breathing is not something that can be learned. The way we breathe was established, once and for all, the moment we were born. Far better to pay attention to it at that stage. But life is not a game. It's a merciless battle.