Diversity in sexual orientation—whether gay, straight, bisexual, or somewhere in between—has sparked long-standing controversies across the globe. In the United States, recent debates have centered ...

Fifty years ago, the nation’s psychiatrists effectively put gay people’s mental health — and their very place in society — to a vote. Subscribe to read this story ad-free Get unlimited access to ...

In 2008, Regina Kunzel learned of an extraordinary collection of case files that had been salvaged from Saint Elizabeths Hospital, a federal institution for the mentally ill in Washington, D.C. These ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Over the years, Pew Research Center has asked Americans about the morality of ...

A new study has shed light on homosexuality, and why it might have evolved. From dolphins to chimpanzees, same–sex behaviours (SSBs) are common among thousands animals, but until now, why they might ...

On the 25th anniversary of the Chinese Classification of Mental Disorders Version 3 (CCMD-3), we revisit the widely repeated claim that China “removed” homosexuality from its list of mental disorders ...