There are a lot of things going on today that can make a person depressed, it is more common than you know. Statistics show that there are more people on anti-depressants or anxiety medication since the recession started with people losing their homes etc.
Some people can't afford their medication, or don't have insurance and it makes it hard for them to get the care they need.
If you suffer from depression, there is a depression research study going on right now, and if you qualify you could receive free medication and compensation of up to $800 for your time.
If you are interested, get more information here.