In this video/podcast the narrator describes some of Shelley's background which gives light to the grotesque feeling from Frankenstein. The industrial era in which Shelley was living during was very dark and twisted. This video states that Frankenstein has been looked over for over a hundred years making different hypothesis. Brought up in the industrialization erra Shelley was repulsed by it and shows he distaste through her literature.
This video describes the science of depression and the chemicals and parts of the brain that are affected. In Frankenstein we can assume that the monster suffers from depression since he shows many of the signs and symptoms expressed in this video. The video shows that the human body that lacks serotonin will become depressed because they are lacking the chemical in the body that makes a person happy.