So many people ask questions about deepening their voice.  One very common question I hear is "will smoking make voice deeper"?  I usually laugh when I hear this question.  I understand that people want to make their voice deeper, but am always very surprised that they would be willing to risk their life just to deepen their voice.  The answer to the question is yes, smoking will make your voice deeper.  But this isn’t the kind of deep voice you want.  It’s very bad for you.  The reason your voice becomes deeper is because you have damaged it!