Transcranial Direct Current Stimulation (tDCS) as depression treatment: much promise, some DIY risks

Around 350 mil­lion peo­ple world­wide have depres­sion. Anti­de­pres­sant med­ica­tions are often pre­scribed to treat the con­di­tion, along­side talk­ing ther­a­pies and lifestyle changes such as reg­u­lar exer­cise. But a sub­stan­tial pro­por­tion of peo­ple either don’t respond to anti­de­pres­sants, or expe­ri­ence such sig­nif­i­cant side effects that they’d pre­fer not to take them. In search of 

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