tDCS With Cognitive Training to Reduce Impulsivity and Weight in Veterans With Obesity

Who May Qualify: - Veteran enrolled in a MOVE! Weight Management Program (group or individual) at the Minneapolis VA Health Care System - Obese (BMI\>30 or BMI\>27 plus at least one weight-related comorbidity) - Adults, ages 18 years or older (up to age 80) - Able to understand English, self-consent and follow study-related procedures - Willing to use a reliable form of birth control if they are of females of child-bearing potential Who Should NOT Join This Trial: - History of any of the following: seizures, severe or moderate head injury, head surgery, significant neurological disorder (significance based on Principal Investigator's judgment) - Frequent severe headaches - History of scalp conditions such as eczema or seborrheic dermatitis - Metal in head (other than in mouth) including shrapnel/surgical clips/welding fragments - Implanted medical devices (including pumps and cardiac pacemakers) - Pregnancy - Acute substance dependence or withdrawal that would affect ability to complete cognitive training - Moderately severe to severe depression (as identified on PHQ-9 scale during baseline screening) - Other psychological or medical disorders requiring inpatient treatment (as identified during chart review) - Presence of a known metabolic or hormonal disorder (such as Cushing's, untreated thyroid dysfunction, or uncontrolled diabetes mellitus defined as a hemoglobin A1c \> 8.0), or significant edema/volume overload - all of which would affect weight - Uncontrolled hypothyroidism that would affect weight Always talk to your doctor about whether this trial is right for you.