Hello, I do some workouts almost everyday, most of all for chest and abs. But my question is, how should I breath correctly to the exercises? I've read and heard that correctly breathing will add more effectiveness to your progress, when you want to build muscles or want to keep yourself fit. But I also read and heard wrong breathing cannot be that effective or can even deform your muscles (I don't know if that is true). But how should I breath correctly in the case of chest and abs? For example regular pushups: I go down and inhale, I go up and exhale. And regular crunch: I go up and exhale, I go down and inhale. Or should it be the opposite? I'm confused and no one explains that correctly. I hope you guys can help me.