Transcranial Direct Current Stimulation Therapy for Sleepiness Related to Shift Work Disorder (tDCS-SWORD)

Inclusion criteria

• ✓. affirmative answers to Do you experience excessive sleepiness? (yes/no); "Do you experience difficulties with falling asleep during opportunities for sleep? (yes/no); "Is the sleep or sleepiness problem related to a work schedule where you have to work when you would normally sleep? (yes/no)"; and "Has this sleep or sleepiness problem related to your work schedule persisted for at least three months? (yes/no)
• ✓. based on the evaluation of the sleep medicine provider, the sleep and/or wake disturbance are not better explained by another current sleep disorder, medical or neurologic disorder, mental disorder, medication use, poor sleep hygiene, or substance abuse disorder.