Some people think you can just wish yourself out of a depression. That's not ture. Many doctors believe that one think that may cause depression is an imbalance of serotonin - a chemical in your body. If this happens, you may have trouble sleeping. fell unusually sad or irritable, find it hard to concentrate, lose your appetite,
lack energy or have trouble feeling pleasure. These are some of the symptoms that can point to depression - especially if they last for more than a couple of the weeks and it normal, everyday life feel like too much to handle.