And according to a few studies, ultrasound may also help improve mood.
After more than 20 years of smoking, I'm trying to quit. But instead of feeling good, I'm feeling sad, even depressed. What's going on?
Dogs can be worried and pessimistic just like people, researchers report.
How does a good joke make us forget our negative emotions?
Why do some doctors give antidepressants, but not diet pills, to overweight patients?
Say you're about to take a test or give an important presentation at work, would you rather be calm and collected or angry and agitated?
Cognitive neuroscientists at Washington University in St. Louis have investigated the relationship between mood and cognitive performance by showing subjects ten-minute clips from both classic horror films and prime-time television comedies.