- Early recovery
- Ecstasy
- EMDR (Eye Movement Desensitization and Reprocessing)
- Emotions Anonymous (EA)
- Enabling
- Equine-assisted therapy
- Existential therapy
- Experiential therapy
- Exposure therapy
- Ecstasy addiction
- Electronic gambling machines
- Endocet
- Escitalopram
- Empathy
- Endorphins
- Epinephrine
- Electroconvulsive therapy
- Euphoria
- ExeClear
- Evidence-based practices
- Extreme stress
- Expressive therapy
- Exercise addiction
- Emotionally focused therapy
- Ego state therapy