Home > Mental health > News 18 March 2011 Human prejudice has ancient roots The tendency to perceive others as "us versus them" isn't exclusively human but appears to be shared by our primate cousins, a new study led by Yale researchers has found. 0 Ask CyberShrink » Talk Heart to heart forum » 13 hidden signs of stress Regenerative medicine: replacing brain cells lost from stroke The tendency to perceive others as "us versus them" isn't exclusively human, but appears to be shared by our primate cousins, a new study led by Yale researchers has found. "Ingroup" vs "outgroup" NEXT ON HEALTH24X Is social media doing all it can to deal with mental health issues? 2020-09-22 04:45 More: Mental healthNews advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... Other news News Mesoglow facial: your bespoke anti-ageing facial Mental health Some friends make you feel more supported than others, and researchers think they know why Medical Covid-19 vaccine hesitancy: Beliefs about origins of virus play a big role Medical Lockdown: Scientists looked at personality traits to understand why some defy the rules News SPONSORED: Dr Sindi van Zyl to answer burning women’s health questions as our guest expert 26 to 30 October 2020 Medical Swine coronavirus could jump to people, researchers warn Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.