Migraine attacks can cause or involve symptoms other than a headache, including mood swings. If rapid shifts in emotion are severe or persistent, they might be a sign of an underlying mood disorder, ...

Research shows that up to 70% of women experience significant mood changes during menopause, yet many feel completely unprepared for the emotional roller coaster. Women might expect hot flashes and ...

Researchers from McGill University may have discovered the "holy grail" of bipolar disorder research: understanding what causes shifts between manic and depressed states. Sleep-wake rhythms in normal ...