31.   Sometimes I wonder if my swimming pool has a chemical imbalance.

32.   Someone with a chemical imbalance batting his brain around.

33.   The brain scanning experiment found a chemical imbalance, which had been previously suspected, in a part of the brain that uses the nerve messenger dopamine.

34.   The popularity of anti-oxidant supplements stems from evidence that cancer can be caused by a chemical imbalance in the cell during a process known as oxidation.

35.   The resulting operation and complications caused her to suffer brain damage and a chemical imbalance that causes her to eat constantly.

36.   The Seattle SuperSonics, meanwhile, might be called a team with a chemical imbalance, supposedly ready to self-destruct.

37.   The study defined a depressed mood as a short-term emotional condition rather than long-term clinical depression, which is often associated with a chemical imbalance in the body.

38.   Yet experts agree that chronic depression can also be triggered by a chemical imbalance of the brain.

39.   Plantation crops are affected by pollution and soil erosion, low water availability and quality, and soil chemical imbalance.