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

Inclusion Criteria:

* 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)
* 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

Exclusion Criteria:

* 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