These animals showed signs of depression, including reduced levels of the hormone serotonin, which is a hallmark of the condition. (sciencedaily.com)
First, researchers know that women and men with bipolar disorder experience episodes of mania or depression — the two hallmarks of the condition — differently and may have different coexisting health issues. (pennstatehealthnews.org)
So it makes sense that the worry, apprehension, and fear that are hallmarks of the condition will also make a huge dent between the sheets. (health.com)