What shapes our self-esteem? Our self-views, or others' opinions? Brain scans show how low self-esteem is wired in the brain.

Attachment styles—secure, avoidant, ambivalent, and disorganized—impact relationship dynamics. Attachment theory informs therapy, parenting, and education but faces cultural and stability-related ...

Mr. Kennedy, the proposed nominee for health secretary, has for decades promoted baseless conspiracy theories. By Anjali Huynh and Teddy Rosenbluth He has promoted a conspiracy theory that ...

Albert Einstein’s theory of general relativity has been proven right on the largest scale yet. An analysis of millions of galaxies shows that the way they have evolved and clustered over ...

But none have been as popular as modern portfolio theory (MPT). Here, we look at the basic ideas behind MPT, its pros and cons, and how it should factor into your portfolio management. Modern ...

Kennedy Jr., a well-known environmental lawyer, veered into fringe theories the early 2000s when he began promoting conspiracies about vaccines and the 2004 presidential election—and many more ...

Working in child, adolescent, and adult mental health and care settings, social workers must become familiar with psychological and social work theories and their practical challenges. This article ...