Depression is no fashionable affliction. In it is real, insidious, and when in full bloom, debilitating. Yet far too many people are oblivious to their own deep sadness or simply refuse to recognize it. Many people assume that depression is easily identifiable, manifesting itself as persistent sadness that doesn't lift. In fact, symptoms of depression can take a variety of forms.You may find that you are tired all the time, and all you want to do is sleep. Depression can also trigger insomnia, forgetfulness, and an inability to take pleasure in normal activities.It is not just feeling sad,depression doesn't just occur when something bad happens in your life. It can happen even when things seem fine.Biggest difference is, depression doesn't make you sad all the time.One of the most popular, enduring, and irritating myths about depression is that it means depressed people are sad all the time – and that by extension, people who are happy can’t be experiencing depression, even if they say they are.