how is depression affected or how does it work? (with the symptoms)

Question: how is depression affected or how does it work? (with the symptoms)
- Keywords:
  depression,
  mental health
Asked by anon-200961 to Rosemary, Oliver, Leigh, Jordan, Hannah, David on 6 Mar 2019. This question was also asked by anon-200973.
- Leigh Kesler answered on 6 Mar 2019:
  
  The exact causes of depression aren’t totally understood by scientists yet. It seems to be related to chemical imbalances in the brain, along with other factors like stress, genetics, and more. The symptoms are varied but can include feeling hopeless, being self critical, and changes in mood or sleep. If someone is experiencing symptoms of depression, they should talk to a medical professional as soon as possible, as it is a treatable condition. If a young person in the UK is in crisis they can use the YoungMinds Crisis Messenger, which provides free, 24/7 crisis support across the UK if you are experiencing a mental health crisis. If you need urgent help text YM to 85258.

Question: how is depression affected or how does it work? (with the symptoms)