People’s judgements about whether they are depressed depend on how they believe their own suffering “ranks” in relation to the suffering of friends and family and the wider world.

Hazardous alcohol use and depression are among the 10 leading causes of disability and premature death worldwide.

Individuals suffering from mood and anxiety disorders such as bipolar, panic disorder and major depressive disorder may be more likely to abuse opioids.

Low levels of a brain protein that regulates gene expression may play a role in the origin of bipolar disorder, a complex and sometimes disabling psychiatric disease.

Nationally known researcher Dr.