A 2014 Cochrane review found insufficient evidence to determine whether or not<unk>  with alternating current is safe and effective for treating depression. FDA came to the same conclusion in December 2019. A 2018 systematic review found that evidence is insufficient that<unk>  has clinically important effects on fibromyalgia, headache, neuromusculoskeletal pain, degenerative joint pain, depression, or insomnia; low-strength evidence suggests modest benefit in patients with anxiety and depression.
Cranial electrotherapy stimulation
Electrical brain stimulation
Magnetic seizure therapy
Electric acoustic stimulation
Non-invasive cerebellar stimulation
Auditory brainstem implant
Transcranial random noise stimulation
Deep brain stimulation