Self-monitoring, lowered arousal training (i.e., biofeedback and relaxation training) and maintenance follow-up appeared to contribute to effective treatment of hypertension. Cognitive therapy, while effective in treatment of some stress-related disorders, has not been studied as a specific treatment component for hypertension. The present study explored the use of cognitive therapy as a treatment variable to reduce blood pressure in hypertensive persons. The effectiveness of a multi-element treatment including cognitive therapy, blood-pressure biofeedback, and relaxation training was also assessed. Self-monitoring and maintenance training were included as a part of each treatment process.