a lot of women are depressed because they are unhappy with their lives.
if you are a career woman you might feel like you are missing out on having a family
if you are a family woman you might feel like your husband doesn't provide enough to you aside from just money. a lot of rich wives cheat on their hubbies for this reason. the guy provides $$$ but nothing else
a good thing to do that has always worked for me is move to a brand new city, change things up. meet new people. get out of the funk