Depression Most of us have had times when we have been down. We have all been unhappy. Some of us will have had depression.
Depression is an illness when the sadness has gone too far.
Depression can look like ordinary unhappiness. The difference is the effect. If you re unhappy you may look miserable and cry, but you can probably still go out. You might not feel like it, but with an effort you can do the things you usually do. You can even cheer up for a bit.