Study: Vast majority of cancers caused by lifestyle, not “bad luck”

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Bad diet, inactivity, smoking and drinking alcohol – all are among the causes of up to 90 percent of cancers, according to a new analysis that stresses how many cases of cancer are under our control.

This paper, published in Nature, is in stark opposition to the paper out earlier this year. Published in Science, that paper found that the majority of cancer cases were caused by “bad luck,” our cells going awry without much people could do to control them. At that time, we pointed out some key flaws with their analysis.

This study used the same premise and a lot of the same data as the Science article to reach a different conclusion: lifestyle makes a difference when it comes to cancer risk.

Here at AICR, where we focus on how diet, physical activity and body fat link to cancer, a wide and consistent body of evidence shows that these factors make a difference. One third of the most common cancers can be prevented with diet, staying lean, and being active.

1_3 Graphic[6] Read more… “Study: Vast majority of cancers caused by lifestyle, not “bad luck””

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    Study: How to save money while preventing childhood obesity

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    Taxes on sugary drinks and unhealthy food advertising to kids may save more than $30 in health care costs for every dollar spent to implement, suggests a new study published this month.

    Childhood obesity rates are nudging upwards, which means more kids are at risk for obesity in adulthood. With this extra weight comes increased risk for cancer, heart disease, and diabetes, as well as the high costs of health care that come with these diseases.

    The new study used previous research to analyze the cost effectiveness and impact on childhood obesity of 7 proposed interventions. Six of the interventions aimed to prevent weight gain in youth while one involved surgical treatment of obesity. With the help of policy makers and other experts, study authors estimated the the effect of each intervention among the US population over the 10 years spanning 2015 to 2025.

    Overall, five strategies were found to decrease incidence of childhood obesity (see chart) with three saving more in healthcare costs than they cost to implement.

    Obesity cost effectivenesssOne strategy was a tax on sugary beverages. The proposed tax, translating to 12 cents for a can of soda, would prevent an estimated 576,000 children from being obese and save $30 for every dollar it cost to enact.

    Another effective strategy was to create nutrition standards for school snacks, fundraisers and other foods sold outside of school meals. This would prevent an estimated 345,00 cases of childhood obesity, saving about $4.50 for every dollar it costs.

    Nutrition standards for school meals was found to prevent the most cases of childhood obesity — approximately 1.8 million cases — yet this strategy cost about 60 cents more to implement than it would save in healthcare costs.

    These results demonstrate the importance and feasibility of prevention measures to reduce childhood obesity, note the authors. The sugar sweetened beverage tax and taxing advertising would also provide revenue that would offset the costs of other prevention efforts, such as nutrition standards for school meals. Future studies are needed to assess the cumulative impact and costs of these interventions.

    This study was funded by The JPB Foundation, The Robert Wood Johnson Foundation, the Donald and Sue Pritzker Nutrition and Fitness Initiative, and the Centers for Disease Control and Prevention.

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      Study: Kids’ peers may help them eat more veggies

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      Kid eating carrotsWhat kids think their peers are eating may matter for how many vegetables they’re eating, suggests a new study. The study was published in the International Journal of Behavioral Nutrition and Physical Activity and could have an impact for cancer prevention decades later. Healthy eating habits can reduce risk of kids being overweight adults, and excess body fat is a cause of ten cancers for adults.

      For this small study, 143 children ages 6-11 were recruited from North-West England and brought in individually for what they thought was a study of game-playing ability.

      Children were shown a participant information sheet of six fictitious previous participants that included general information as well as the amount of carrots each child ate during the session. The carrots column either read “all” (high intake group), “none” (low intake group); the column was blank or omitted in two control groups. Children were also presented with a bowl. The bowl contained one carrot in the high intake group, was nearly full of carrots in the low intake group, and was filled with pens for the control groups. Read more… “Study: Kids’ peers may help them eat more veggies”

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