If stress, or interpersonal or job-related tension, is interfering with your daily life or if a medical condition is causing you mental anguish, you may want to seek mental health care. If habitual use of legal or illegal substances is negatively affecting your health and/or your daily life, you should seek treatment for substance abuse. In either circumstance, you should seek care as soon as possible, before you feel that you can no longer cope with the situation. These problems are just as important, and treatable, as medical problems.