A non-invasive treatment that applies low-level pulsed electrical current across the head via ear clip electrodes to manage anxiety, insomnia, depression, and chronic pain.
Cranial electrotherapy stimulation (CES) delivers a very low-level alternating microcurrent (typically below 1 milliamp) through electrodes clipped to the earlobes or placed on the mastoid processes behind the ears. This subsensory current modulates neurotransmitter activity and brain wave patterns.
CES has been cleared by regulatory authorities in multiple countries for the treatment of anxiety, insomnia, depression, and pain. It is used at St. George Hospital as a complementary treatment within comprehensive neurological and psychiatric treatment programs.
The microcurrent delivered by CES is thought to modulate neurotransmitter production and release, particularly serotonin, beta-endorphin, and GABA. EEG studies show that CES shifts brain wave patterns toward alpha frequencies, which are associated with relaxed alertness and reduced anxiety.
The current follows the path of least resistance through the skull, primarily affecting subcortical structures including the thalamus, hypothalamus, and limbic system — brain regions central to mood regulation, sleep-wake cycles, and pain processing.
CES is a gentle, well-tolerated treatment that may complement other therapies. Our specialists will assess whether it is appropriate for your condition
Small electrode clips are placed on the earlobes. The device is turned on and adjusted to a comfortable, subsensory level — most patients feel nothing or only a slight tingling. Sessions last 20-60 minutes and can be performed daily. Many patients fall asleep during the treatment due to its relaxing effect. CES devices are also available for home use, allowing patients to continue treatment after their hospital stay.
CES has been studied in over 100 published clinical trials. Meta-analyses in the Journal of Nervous and Mental Disease and other peer-reviewed journals demonstrate statistically significant benefits for anxiety and insomnia. The technology has an excellent safety profile with over 50 years of clinical use and no reported serious adverse events. The most common side effect is mild skin irritation at the electrode sites, which is uncommon and transient.
Contact our neuromodulation team to discuss whether cranial electrotherapy stimulation may support your treatment.
