What does recent research suggest is a mechanism by which elevated levels of stress hormones may lead to mood disorders

They inhibit the development of new neurons in the hippocampus.

Explanation:

Elevated levels of stress hormones may lead to mood disorders when there is a development of new neurons in the hippocampus. The hippocampus is a section of the brain structure which is deep into a temporal lobe. It's observed to get damaged easily by stimuli when affected by psychiatric disorders.

answer; the above statement is (false);