Weight Loss
Research Program
Join the NIH's compensated clinical research study observing brain activity on food intake and weight loss in people with overweight or obesity.
Phoenix, AZ
In Generally Good Health
Currently Overweight
18 - 60
Years Old
Fast Facts
About our research study:
Researchers are testing a new weight loss program focused on the impact of brain activity and eating habits. Your involvement may lead to you losing weight.
Healthy eating is essential for memory, mood, and focus — the brain uses more than 20% of our caloric needs. Having overweight or obesity may impact brain activity. Since higher BMI is linked to decreased cerebral blood flow, when a person's weight goes up, activity and blood flow may go down in certain regions of the brain.

Researchers at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) in Phoenix want to see whether increases in brain activity will change eating patterns and lead to weight loss. Join our researchers in finding new treatments to help adults struggling with obesity.

Additional Information
Why are these studies being done?
The National Institutes of Health researchers are investigating if increasing activity in an area of the brain can change eating patterns and lead to weight loss.
Are these studies for me?
You may be able to participate if you are:

  • 18-60 years old
  • In generally good health
  • Considered overweight (BMI > 25)
  • Right-handed
What will happen if I participate in one of these studies?
The study consists of:
  • One outpatient screening visit (2 hours) to ensure you meet study participation criteria
  • One outpatient baseline visit (5-6 hours) with tests, questionnaires, and measurements to determine your body composition, eating habits, mood, and personality
  • A weight loss and diet counseling session will also occur during the baseline visit
  • 4 functional MRI scans are performed at a local hospital to see if brain activity is stimulated by tDCS
  • 27 outpatient visits, 3 days a week for 9 weeks for brain stimulation sessions
  • You will be asked to eat a 25% reduced calorie diet during that 9-week period
Will I be paid for being in one of these research studies ?
You will be compensated for your participation.
Will it cost me anything to participate in one of these research studies?
You will not be charged for participating in a research study.