Well I'm just shooting in the dark for the obvious, but they must be careful that the patient doesn't depend on them too much. Although you're a therapist to help them, you need to walk a fine line so they don't always come to you for help and are able to do their own decisions. I'm sure it wouldn't be a bother to help them every now and then to help them make their own decisions, but there'll be times a therapist can't help (or opinionate) or simply believes that the person can work it through.
If you are asking if its a physical or chemical change it would be physical.
As you age, you realize that the way you eat might effect how long you live. Eating too much or too much bad things can give you lots of medical conditions, and you realize that as you get older.
Answer:
virbl mens like and non virble means no
Explanation: