Health.com has released an updated list as of things that are considered to be the most common causes of modern depression... some things on the list may be a surprise...
1. Sleep Habits
2. Smoking
3. Thyroid Disease
3. Facebook overload
4. End of a favorite TV show or movies series
5. Where you live
6. Lack of fish in your diet
7. Poor sibling relationships
8. Medications
9. Summer weather