In a couple of days, we'll celebrate our best, most important holiday. While celebrations of the harvest have existed for as long as civilization (for indeed it was agriculture that necessitated both), this particular holiday is uniquely American.

When you're in a bad mood and have your nose to the grindstone, all you see is the task at hand. But a good mood lets you see how the task fits into the bigger picture.

Unhappy people glue themselves to the television 30 percent more than happy people.

The holiday season for most people is a fun time of the year filled with parties, celebrations, and social gatherings with family and friends. For many people, it is a time filled with sadness, self-reflection, loneliness, and anxiety.

Joyful music helps your heart, researchers find.

The brains of bullies—kids who start fights, tell lies, and break stuff with glee—may be wired to feel pleasure when watching others suffer pain, according to a new brain scanning study.

When you see somebody you hate, whether it's an evil ex or a mean colleague, your brain undergoes a rather unexpected transformation. A new study published in PLoS One today reveals that hatred isn't the blind, irrational emotion it might seem. In fact, hate activates the brain regions associated with higher reason and the ability to predict what other people will do.

Drivers seem pretty comfortable chatting on their cell phones while navigating the streets. But brain researchers say it's a terrible idea, even with a hands-free device.

Don't believe the multitasking hype, scientists say. New research shows that we humans aren't as good as we think we are at doing several things at once. But it also highlights a human skill that gave us an evolutionary edge.

Scientists have pinpointed a key brain chemical involved in dealing with the sudden loss or long-term separation of a partner, they said Wednesday.