depression is not just sadness. it's a tangled web of many emotions. it's feeling nothing, but feeling everything. it's feeling lost and hopeless. it's not being able to sleep, or sleeping excessively. depression is invisible. looking at someone you couldn't tell they're depressed. they smile, they laugh, they act happy. they hide their depression because they don't want other people to see that they're depressed. they don't want to bring other people down. depression is many things.
