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When it comes to topics like abortion or assisted suicide, there seems to be no common ground between conservatives and liberals. Why is there such a noticeable rift between the two political orientations?

Human sleeping and waking patterns are largely governed by an internal circadian clock that corresponds closely with the 24-hour cycle of light and darkness.

Human beings in cultures across the world engage in extreme rituals that involve self-mutilation or enduring other types of suffering.

As Descartes famously noted, there’s no way to really know that another person has a mind — every mind we observe is, in a sense, a mind we create.

Young conservatives believe they are more conservative than they actually are, according to research published June 13 in Social Psychological and Personality Science.

Opioids, such as morphine, are still the most effective class of painkillers, but they come with unwanted side effects and can also be addictive and deadly at high doses.

The stimulant drug methylphenidate (Ritalin) could enhance social functioning in children with attention deficit/hyperactivity disorder (ADHD).

A University of British Columbia study sheds important new light on why people attempt suicide and provides the first scientifically tested measure for evaluating the motivations for suicide.

Communities that stick together and do good for others cope better with crises and are happier for it, according to a new study by John Helliwell, from the University of British Columbia in Canada, and colleagues.

Smile and the world smiles with you — but new research suggests that not all smiles are created equal.

Conservatives are more likely than liberals to identify mixed-race individuals as Black, according to a series of new studies by researchers at New York University.

Research published this month in the scientific journal Personality and Social Psychology Bulletin has uncovered a cultural variation in the way American and Japanese people describe everyday actions.

Online dating helps some gay men accept their sexual orientation, according to research published June 7 in New Media & Society.

A new study from the University of British Columbia helps explain how people become obsessed with forbidden pleasures.

We don't just share our lives with animals; we are animals – a reality that we often choose to forget in modern Western culture.