Over the past three decades there’s been a slight but steady decline in colorectal cancer incidence here in the US, thanks in large part to increased screening. Now a study out this week showing that rates of this cancer are increasing among young people — below the typical screening age — highlights the importance of people of all ages adopting healthy behaviors that can halve the risk of colorectal cancer.
The study – published in JAMA Surgery – found that among 20- to 34-year-olds, the data indicates incidence of colon and rectal cancer will increase by 90% and 124%, respectively, by 2030. Among the 35 to 49 year olds, rates are estimated to increase by 28% and 46%, respectively.
This large study confirms previous research on incidence trends, and it points to a growing public health problem, the authors note. Lifestyle and behavioral factors such as obesity may be a possible cause.
AICR estimates that half of all colorectal cancer cases are preventable if people were to eat healthier diets, move more and stay lean.
Inflammation is big news these days in the research world, as studies increasingly point to chronic inflammation as a key role in cancers, as well as other chronic diseases. Now, the first science-based inflammation diet suggests that what you eat can increase or decrease inflammation and that, in turn, can affect your risk of colorectal cancer.
The research on the inflammation diet was presented at our conference today by Susan Steck at the University of South Carolina. We wrote about their Dietary Inflammatory Index here, as well as the new study on diet and colorectal cancer. Based on their index, here’s some anti-inflammatory foods (and pro-inflammatory) they found.
There’s consistent and solid evidence that physical activity reduces risk of several cancers — such as colorectal and postmenopausal breast. Data is not as strong when it comes to survival but it’s growing, especially for breast and colorectal survivors.
That’s the latest from expert Christine Friedenreich, who led off the presentations about physical activity’s effect on survivorship at our research conference today.
Randomized clinical trials (RCTs) are considered the gold standard of studies, which would compare a random group of survivors who follow an exercise intervention to those not doing it. Currently, we don’t have RCTs but there is observational evidence showing benefits, said Friedenreich.
Exercise may supply its benefits in a number of ways: It may help patients complete their treatment or it could help control harms of the therapy. Animal studies suggest exercise may also help the therapy get to the tumor by improving blood flow.
But can the course of exercise alter the course of the disease? Two major studies highlighted will hopefully provide some answers. One is ALBERTA a major observational study focusing on exercise and breast cancer survivors. Then CHALLENGE is a randomized control trial investigating exercise among colon cancer survivors.
Here’s the guidelines from the American College of Sports Medicine on exercise for survivors.
And here’s the latest on our CUP report that came out this month on survival and breast cancer.