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Article source: http://news.yahoo.com/congress-puts-spy-world-money-diet-171701412.html
Tag Archive: Diet
Congress puts spy world on money diet
December 16th, 2011 / tags:Congress, Diet, Remake America, Story, weight, Yahoo News / categories: Uncategorized /Images in magazines and on television increase body dissatisfaction
December 16th, 2011 / tags:body, body mass index, body mass index bmi, diagnosis, Diet, information, treatment, weight / categories: Uncategorized /ScienceDaily (Oct. 28, 2011) Adolescents who read magazines and watch television contents that deal with the concept of image prove to be unhappier with their own bodies. Girls are more susceptible to experiencing a lower perception of their physical appearance. Body dissatisfaction is linked to the type of content that is consumed (diet, beauty, health or music videos) rather than the frequency of exposure.
María Calado, lead author of the study and researcher at the Meixoeiro Hospital in Vigo explains that “although the relationship between exposure to magazines and television and body dissatisfaction exists, it is not a direct one. There are psychological variables that can moderate this relationship, such as eating disorders, self-esteem or the internalisation of a thin body being the ideal.”
Published in Women’s Health Issues, the study assesses the relationship that exposure to magazines and television, the above mentioned psychological variables and body mass index (BMI) have with body dissatisfaction in terms of gender. It also determines what factors can foretell such dissatisfaction.
For this purpose, the researchers analysed a representative sample group of 1165 Spanish secondary school students between the ages of 14 and 16 years. The results show that body dissatisfaction is linked to exposure to certain types of media content which deals with body image (diet, beauty, health or music videos) rather than the frequency of exposure.
Men and women with body dissatisfaction display differences which depend on the studied psychological variables. Furthermore, “the effect is seen mainly in women,” states Calado, who adds that “other pressures are exerted on men that are mainly linked to achieving a muscular body.”
Although the women had a lower BMI than the men, they displayed greater body dissatisfaction (16.5% in women as opposed to 5.4% in men), internalisation of the ideal body, social comparison, eating disorders and low self-esteem. “What is more, high body dissatisfaction in men is associated with a lower exposure to fitness content on television and magazines,” outlines the researcher.
The authors of the study stress that in the future the ways in which the media can affect internalisation of physical ideals should be studied. This could form the basis of developing body image, diet and weight alterations.
Calado concludes that “this study could be very beneficial for the government with regards to promoting a positive body image and could shed new light on health prevention for health professionals.”
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The above story is reprinted from materials provided by Plataforma SINC, via AlphaGalileo.
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Journal Reference:
- María Calado, María Lameiras, Ana R. Sepulveda, Yolanda Rodriguez, María V. Carrera. The Association Between Exposure to Mass Media and Body Dissatisfaction Among Spanish Adolescents. Women’s Health Issues, 2011; 21 (5): 390 DOI: 10.1016/j.whi.2011.02.013
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Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.
Article source: http://www.sciencedaily.com/releases/2011/10/111028082005.htm
Obese people regain weight after dieting due to hormones, Australian study finds
December 15th, 2011 / tags:cent, diagnosis, Diet, health, information, Loss, obese adults, obesity epidemic, treatment, weight / categories: Uncategorized /ScienceDaily (Oct. 28, 2011) Worldwide, there are more than 1.5 billion overweight adults, including 400 million who are obese. In Australia, it is estimated more than 50 per cent of women and 60 per cent of men are either overweight or obese. Although restriction of diet often results in initial weight loss, more than 80 per cent of obese dieters fail to maintain their reduced weight. Obese people may regain weight after dieting due to hormonal changes, a new study has shown.
The study involved 50 overweight or obese adults, with a BMI of between 27 and 40, and an average weight of 95kg, who enrolled in a 10-week weight loss program using a very low energy diet. Levels of appetite-regulating hormones were measured at baseline, at the end of the program and one year after initial weight loss.
Results showed that following initial weight loss of about 13 kgs, the levels of hormones that influence hunger changed in a way which would be expected to increase appetite. These changes were sustained for at least one year. Participants regained around 5kgs during the one-year period of study.
Professor Joseph Proietto from the University of Melbourne and Austin Health said the study revealed the important roles that hormones play in regulating body weight, making dietary and behavioral change less likely to work in the long-term.
“Our study has provided clues as to why obese people who have lost weight often relapse. The relapse has a strong physiological basis and is not simply the result of the voluntary resumption of old habits,” he said.
Dr Proietto said although health promotion campaigns recommended obese people adopt lifestyle changes such as to be more active, they were unlikely to lead to reversal of the obesity epidemic.
“Ultimately it would be more effective to focus public health efforts in preventing children from becoming obese.”
“The study also suggests that hunger following weight loss needs to be addressed. This may be possible with long-term pharmacotherapy or hormone manipulation but these options need to be investigated,” he said.
The study was done in collaboration with La Trobe University. It was published in the New England Journal of Medicine.
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Journal Reference:
- Priya Sumithran, Luke A. Prendergast, Elizabeth Delbridge, Katrina Purcell, Arthur Shulkes, Adamandia Kriketos, Joseph Proietto. Long-Term Persistence of Hormonal Adaptations to Weight Loss. New England Journal of Medicine, 2011; 365 (17): 1597 DOI: 10.1056/NEJMoa1105816
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Article source: http://www.sciencedaily.com/releases/2011/10/111028142504.htm