Get a full medical checkup.
A thyroid condition, hormonal imbalance, or viral infection like mononucleosis can leave you feeling lower than a toad's belly. Some drugs—antihistamines and steroids like cortisone among them—can also make you feel depressed, so be sure to tell your doctor what you're taking.
Keep in mind that when a primary care doctor writes an Rx for an antidepressant, this is not usually her area of expertise. Psycho-pharmacologists, on the other hand, are highly specialized in prescribing psychiatric drugs and are a good choice if you've taken antidepressants without success or know you want to try medication. If not, consider making an appointment with an expert who practices cognitive behavioral therapy to see if that non-drug approach might work.
Declutter your life! Our March issue features a complete guide to streamlining your life, from Peter Walsh's 30-Day Organization Challenge to innovative ways to clear your mind. Plus, go behind the scenes of Oprah's yard sale and find out how you can improve the world with a simple "hello."