Inclusion criteria:
patients aged 18 to 65 years
Normal and abnormal findings on brain scans within the first 24 hours of hospitalization
all TBI severity
at least 2 weeks to one month after the time of injury onset
The ISI score is over 7 .
Exclusion criteria:
People with a history of primary sleep disorders
taking psychotropic drugs one month before entering the study
having serious neurological and psychiatric disorders
patients with previous traumas
those with tDCS contraception, such as pregnant patients, patients with metal implants or pains, those having a heart pacemaker, taking a psychoactive drug or an effective CNS drug, substance abusers, existence of psychiatric and neurological diseases , a history of seizure, epilepsy, tumor, Neurotrauma, stroke, or neurological diseases, those experiencing skin eczema under the tDCS electrodes
Clinical instability or having behavioral problems that prevent the cooperation of the subject in the intervention
The use of sodium and calcium-dependent calcium channel blockers such as phenytoin, carbamazepine, verapamil, nimesadine, and flonarazine
having a serious complication associated with tDCS
The patient's dissatisfaction with the continuation of the study