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Lecture Notes

Here you can see some of the common symptoms of depression. Again, there are many different symptoms, and people don't need to experience all of these symptoms to be classified as depressed. And notice that they can be psychological, as indicated by one star on this slide; behavioral, two stars; or physical, three stars. And so you should also note that some of the symptoms can manifest in very different ways depending on the individual, so if you look at sleep, someone could have insomnia and not be able to sleep; on the very other end of the spectrum, someone might be sleeping excessively. The same thing goes for appetite; someone might have weight loss or weight gain based on increased or decreased appetite. And so for even more—again, this is not a complete list—and for even more symptoms of depression, check out your textbook.