Take her by the hand and go with her to the psychiatrist, Reaching.
Her condition will only worsen unless she can understand the harm she is doing to herself by the use of caffeine in depression. You reach a point in dealing with the illness in your home when you just have to make the appointment and go with her.
If she won't go, you've taken action which is essential. Then, see the psychiatrist yourself and find out what his recommendations are for you to manage the home. It might make her think seriously about her behavior to know that you are making a serious effort to see that change occurs. This might be a case in which "tough love" is called for.
Post Edited (It's Genetic) : 7/27/2011 1:39:52 PM (GMT-6)