The USDA<span> Center for Nutrition Policy and Promotion.</span>
        
             
        
        
        
Bipolar disorder and depression are Mood Disorders. 
This means that they are both mental health conditions that affect your mood in a chronic way, it is more than just being sad or happy. Depression is chronic (meaning long lasting), persistent, debilitating sadness/misery/despair. It creates extreme low mood. Bipolar disorder is a mixture of depression and mania. Depression would be the low mood and mania would be the exact opposite which is extreme high mood and happiness which leads to irrational and sometimes destructive behavior.   
 
        
             
        
        
        
The report reveals that common food dyes pose risks of cancer, hyperactivity in children, and allergies. The food industry dumps over 15 million pounds of the dyes studied into the food supply each year. Three of the dyes carry known carcinogens, and 4 can cause serious allergic reactions in some consumers.
here. I found this for you. don't know how accurate but it may help.
        
             
        
        
        
The answer to this question is d. measure the electrical output of the brain! Good Luck!