Depression is a daily problem for many of us. Some of us suddenly become depressed and miserable for a while. While this may be temporary for some people , some people experience these feelings intensely over a long period of time - maybe for weeks , months or years and sometimes for no apparent reason. People suffer from a kind of inferiority complex as a result of depression. And this inferiority complex has a significant effect on your physical and mental health. Depression is a human problem that affects a person's ability to function. Depression can be a serious problem if your mind is often unhappy. You can't eliminate this problem from your life but with treatment you can overcome your depression and feel better. Some of the common causes of depression can be: personality , negative thinking , family complications , work complications , death of a loved one or friend , financial hardship , drug abuse and difficult and bitter life experiences. Symptoms of Depression: People experience depression in different ways. Common symptoms of depression include mood swings, mood swings, irritability, discouragement or helplessness, self-blame and guilt over everything. Feeling we have 'Run out of gas' emotionally and emotionally. .Increasing drug use * .Modder mood * * Loss of appetite or overeating * .Sleep problems - Difficulty falling asleep , waking up in the middle of the night or sleeping for long periods of time * .Headache and stomach ache * Do *. Lack of sexual interest.