Jealousy: why it exists and what it protects
by TEDx Talks · Institutional source
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- TEDx Talks
- Originally published
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- English
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What it is about and why watch it
Does jealousy weigh on you more than you admit? Told by TEDx Talks (verified channel: Institutional source).
Professor Leif Edward Ottesen Kennair of the Department of Psychology at NTNU, the Norwegian University of Science and Technology, gives this TEDxTrondheim talk on jealousy. His NTNU staff page lists him as a professor who leads a research group on evolutionary psychology and individual differences, with jealousy among his research areas, and he is also active in clinical psychology. Jealousy is one of the most common emotions that people in swinging and open relationships report, so understanding it as a normal human response, rather than a personal failing, can lower the pressure you put on yourself. The talk approaches jealousy from an evolutionary perspective and asks whether it has to be purely negative, looking at how it can function to protect emotional bonds. Treat it as an explanation of why the feeling appears, not as a coaching programme: it does not offer step by step tools for managing jealousy during events, and it is not specific to non-monogamy. With a partner, you can use the idea practically by naming the feeling without blame, asking what it is signalling, and deciding together which agreements, such as pacing, check-ins or a pause word, would make you both feel safer.
What you will take away
- Jealousy is a common, understandable human emotion
- An evolutionary view explains why it may exist
- Feeling jealous does not mean the relationship is failing
- Name the feeling and ask what need or fear sits behind it
- Agree on practical safeguards together
Points written by us as a guide; the full video is always the source.
Why these minutes are worth it
We recommend it because TEDx Talks is a verified source (institutional source), it approaches the topic in an informative and respectful tone, and this video contains no explicit content. Use it as a starting point for a conversation as a couple, not as individual medical or therapeutic advice.
Why we trust this source
A channel of a public health body, university, NGO or TED/TEDx talk: the authority belongs to the institution itself.
Canal oficial TEDx. TEDxUSH figura como evento TEDx en ted.com/tedx/events (Shibuya, Japon, evento universitario). Descripcion del video: la oradora Yu Shundo promueve sistemas universitarios contra la violencia sexual y el concepto de consentimiento sexual. La charla de Mayumi Sato figura en ted.com/talks (TEDxUNESPBauru, abril 2018; la ficha de ted.com confirma que es un evento TEDx local de organizacion independiente). Ola 3 (2026-11-07): ted.com confirma la ficha de la charla de Nagoski (TEDxFergusonLibrary, 2019); el resto de charlas se identifican por el titulo de oEmbed, que incluye el evento TEDx y el nombre del orador (TEDxVancouver, TEDxBucharest, TEDxSurrey, TEDxU O, TEDxRiodelaPlata). La credencial profesional de cada orador no se ha contrastado, salvo Diana Wang (perfil en TEDxRiodelaPlata: psicoterapeuta de pareja).
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