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Stress : portrait of a killer

Auteur : Linda GoldmanJohn HeminwayRobert M SapolskyElizabeth H BlackburnCarol A ShivelyTous les auteurs
Éditeur : [Washington, DC] : National Geographic ; Burbank, Calif. : Distributed by Warner Home Video, ©2008.
Collection : National Geographic Society special.
Édition/format :   Vidéo DVD : NTSC : AnglaisVoir toutes les éditions et les formats
Base de données :WorldCat
Résumé :
A series of laboratory and field experiments demonstrated that stress, long thought to be an exclusively psychological phenomenon, is measurable and dangerous on a physical level. Stanford neurobiologist Dr. Robert Sapolsky studied baboons (Papio) on the Masai Mara Reserve in Kenya, measuring their levels of stress hormones caused by social hierarchies. Sapolsky found that the hormones adrenaline and glucocorticoid  Lire la suite...
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Détails

Genre/forme : Documentary television programs
Educational television programs
Nonfiction television programs
Video recordings for the hearing impaired
Television series
Television programs
Documentary
Personne nommée : Robert M Sapolsky
Type d’ouvrage : Enregistrement vidéo
Format : Matériel visuel
Tous les auteurs / collaborateurs : Linda Goldman; John Heminway; Robert M Sapolsky; Elizabeth H Blackburn; Carol A Shively; Michael Marmot; Elissa Epel; Tessa Roseboom; Marcus Lovett; National Geographic Television.; Stanford University.; National Geographic Channel (Television station : Washington, D.C.); National Geographic Society (U.S.); Warner Home Video (Firm)
ISBN : 9781426293092 1426293097
Numéro OCLC : 244206877
Note sur la langue : English ; closed-captions for the hearing impaired.
Notes : Originally produced in 2008.
Crédits : Cinematographer, Bob Poole ; editor, David Klagsbrun ; music by Lenny Williams, Chris Biando.
Interprète(s) : Narrator, Marcus Lovett ; features interviews with Dr. Robert Sapolsky, Dr. Carol Shively, Sir Michael Marmot, Dr. Tessa Roseboom, Dr. Elizabeth Blackburn, Dr. Elissa Epel.
Public cible : Not rated.
Description : 1 videodisc (56 min.) : sd., col. ; 4 3/4 in.
Détails : DVD ; NTSC, Region 1 ; widescreen presentation, preserves the aspect ratio of its original television broadcast ; Dolby digital audio.
Contenu : A Hunch --
Survival --
Control --
Rank --
Ulcers --
Dangerous fat --
Scars of war --
Ageing --
A Remedy .
Titre de collection : National Geographic Society special.
Autres titres : Portrait of a killer
Responsabilité : a co-production of National Geographic Television and Stanford University ; senior producer, Linda Goldman ; producer/director/writer, John Heminway.

Résumé :

A series of laboratory and field experiments demonstrated that stress, long thought to be an exclusively psychological phenomenon, is measurable and dangerous on a physical level. Stanford neurobiologist Dr. Robert Sapolsky studied baboons (Papio) on the Masai Mara Reserve in Kenya, measuring their levels of stress hormones caused by social hierarchies. Sapolsky found that the hormones adrenaline and glucocorticoid increase in subordinate troop members, and dominant males had significantly lower blood pressure and heart rates. Also working with nonhuman primate models, Dr. Carol Shively of Wake Forest University examined the arteries of rhesus macaques (Macaca mulatta). Corroborating Sapolsky's findings, Shively demonstrated that subordinate macaques have higher plaque levels in arteries, potentially increasing the risk for heart attack. These results were compared to a long-term human study, directed by Sir Michael Marmot of the University of London Medical School. Tracking the health of British Civil Servants, Marmot found that that humans lower in the workplace hierarchy had higher stress levels, and higher rates of sickness. Several researchers took these results a step further, focusing in on how stress affects mothers. Dr. Elizabeth Blackburn and Dr. Elissa Epel of the University of California-San Francisco found that chronic high stress in mothers shortened telomeres in chromosomes, potentially producing lifelong consequences. In all of these studies, researchers found that stress and its harmful effects can be reduced by social interaction, and that grooming, playing, and equal social rank in nonhuman primates produced positive health effects.

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Données liées


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