1.   It is caused by their chemical imbalance, their emotional arrhythmia and their disenchantment with the world.

2.   Typically a woman experiences either postpartum blues, caused by hormonal changes, or postpartum depression, caused by a chemical imbalance.

3.   Psychologists hypothesized that his odd behavior was caused by a chemical imbalance in the brain.

4.   Her depression is caused by a chemical imbalance in the brain.

5.   These medicines are used for correcting chemical imbalances in the brain.

6.   A chemical imbalance has been suspected to underlie the development of spontaneous seizures and epilepsy-related neuron damage.

7.   Although fertilization may occur normally, a chemical imbalance can dislodge the developing embryo and prevent a woman from bringing the child to term.

8.   And they will look for people who are willing to consider the possibility that Yates suffers from a chemical imbalance.

9.   And while lifelong depression can be a chemical imbalance, teen-age depression is often situational.

10.   A chemical imbalance in my brain called clinical depression and generalized anxiety disorder.