Depression can be caused by a combination of genetic factors and environmental factors, meaning that some people are more susceptible to it than others.
Stress often is a contributing factor to depression.There is a range of different symptoms of depression, and each person may experience depression a bit differently.
Depression can present itself as anger, irritability, persistent sadness, sudden lack of enthusiasm for activities that would usually be a hobby, increase or decrease in appetite (and as a result, increase or decrease in weight).
For most, money problems are all too familiar and a huge cause of stress.
Some mental health issues are short-term, and treatments like counselling, a short course of anti-depressants and/or therapy may help a person through this time.
Other mental health issues, such as Bipolar Disorder, are permanent and need to be managed.