What does your book conclude on Page 295 about biological and biochemical causes of depression?
The depletion of a neurotransmitter could produce symptoms of depression. If the number of neurons being activated is greatly reduced, one might expect to see the cognitive and behavioral slowing, the reduction in energy, and the unresponsiveness observed in depression. While many in the pharmaceutical industry confidently assert that neurochemical imbalances cause depression, the evidence is often directly contradictory to that claim.
