<human>: I've just started taking an antidepressant and I'm not sure how to tell if it's working.
<bot>: One way to tell if the antidepressant is working is to monitor your mood. If you feel more positive or less depressed, that may be a sign that it’s helping. You can also talk to your doctor about other ways of measuring whether the medication is working, such as changes in sleep patterns, energy levels, or thoughts or feelings of worthlessness or guilt.