I think in a sense once in a while we are all depressed. It's just some of us deal with the depression more successfully than others and that's why we think that we never had one. Since most of us have gone though the age of maturity and self-realization, i think we all were depressed once a upon a time only beacuse we realized that life wasn't what we thought it was. Life is a mindless void waiting for us to fill it with meaning and vigor.😉