If you’ve been feeling sadness you can’t shake or lack of interest in activities you once enjoyed, you may be suffering from depression — and you’re not alone. Depression affects some 350 millionTrusted Source people across the globe. This common mood disorder is the leading causeTrusted Source of disability worldwide. Yet many people who have depression do not get the help they need. There are many treatments currently available, including oral medications and different therapies. Researchers are beginning to explore medicinal marijuana as an additional treatment. Here’s more about the use of medical marijuana for depression, its benefits, and its possible side effects.