This is a difficult question to answer because everyone is a unique individual who comes with their own history of illness, accidents
and inherited pre-disposition to emotional and physical stress. As a general rule, the longer the problem has been noticeable, the longer it will take to resolve. In my own experience, most people need between three and six sessions. Having said that, I have had some who required only one session, and others who needed ten or more, but the majority fall in the three to six bracket.