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Sleep and Obesity - Transcript

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00:00            Images: Alarm clock in dark
                      Light on at five o clock
                      Hand turns alarm off
                      University of Warwick Sign
                      Lecture theatre
                      Obesity statistics on screen
                      BMI measured

Guide Voice: Are you getting enough sleep?

If you are getting less than five hours a night, you could be doubling your risk of becoming obese, according to a research study presented at the International AC21 Research Festival, hosted by the University of Warwick this month.

Concerns over obesity have long been widespread in the USA, where the relationship between exercise, diet, weight and health are being studied extensively, but now the World Health Organisation is looking at increases in Europe too, and is developing a charter to organise immediate action to curb obesity in the region.

00:31 SOT: Francesco Branca, Adviser on Nutrition and Food Security, European Regional Office, World Health Organisation - “It is indeed a serious problem, a high body mass index is one of the key risk factor for non-communicable diseases which are responsible for the majority of deaths in Europe. We have seen an increase in the last 30 – 40 years and now most of the countries in the European region are affected. We have up to two thirds of the population which is affected by overweight and now the problem is becoming increasingly important for children.”

01:02            Images: CU Professor Franco Cappuccio
                      CU, skin fold callipers used on child’s arm
                      CU, skin fold calliper
                      CU, skin fold calliper used on child            

Guide Voice: This link between lack of sleep and obesity is an early finding of a study by Professor Francesco Cappuccio of the University of Warwick’s Medical school.

He examined current evidence in over 28,000 children and 15,000 adults and discovered that sleeping less than 5 hours a night is associated not only with a greater increase in body mass index and waist circumference over time. but alarmingly, with almost a twofold increase in the risk of obesity for both groups.

01:30 SOT Professor Francesco Cappuccio, The MedicalSchool, University of Warwick - “Parallel to an epidemic of obesity in the western world we found that since 1910 particularly in the US where they have been collected more comprehensively there has been a rapid decline in the number of hours we sleep per night from about over 9 hours a night to less than 7 and this seems to be associated with an increasing level of chronic conditions.”

01:54            Images: CU, mouth eating burger
                      CU, fries taken from pack

Guide Voice: Like other factors contributing to obesity, food choices, lack of exercise, it seems to be a lifestyle issue.

02:01 SOT Francesco Branca, WHO, European Regional Office - “This is an interesting piece of research and putting together different lifestyle aspects with food choices. The choice of food is very much determined by what is around so the obese environment is what we need to research more so the integration between medical research and socio-political research is something we should be exploring more.

02:24            Images: Picture of obese man
                      CU, tilt up picture of obese man

Guide Voice: Some of Professor Cappuccio’s findings also provide a potential reason for the connection between sleep and an increase in appetite.

02:32 SOT Professor Cappuccio - “This data also show that there are plausible mechanisms by which these associations may be explained by. The change in hormones, one called leptin and one called ghrelin may affect the level of appetite and they may be directly effected by the lack of sleep. So in actual terms some of the research shows that one of the possible mechanisms of explaining the findings is a hormonal mechanism leading to eating more.”

03:02            Images: Obese woman x 3
                      Obese man
                      Obese woman
                      CU, tomato ketchup being put onto burger
                      ECU, tomato ketchup being put onto burger

Guide Voice: Professor Cappuccio wants to explore the area further, looking at how short sleep may be linked to other conditions like diabetes and hypertension, as well as obesity, which according to the WHO now affects one in three children in Europe alone and that is growing at a rate of 1 to 2 per cent a year. 

03:20            Ends

This material is available for use without restriction for up to 28 days following the feed date, Tuesday 11 July 2006. For use beyond this period, please contact Research-TV on 44 (0) 207 004 7130 or email enquiries@research-tv.com.

Page contact: Shuehyen Wong Last revised: Wed 12 Jul 2006
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