Need another reason to build exercise into your week, month and so on? Here comes one, with a new analysis of the research suggesting that those who are the most aerobically fit for better heart health have almost half the risk of dying from cancer compared to those least fit. The study was published in the Annals of Oncology.
With heart disease and cancer the top two causes of death in the US, the analysis adds to a growing body of evidence that people can protect against top diseases with similar healthy lifestyles.
This study focused on a physical fitness indicator often used for heart health called cardiorespiratory or aerobic fitness. In order to produce energy, our exercising muscle cells need to pull oxygen from the blood. Cardiorespiratory fitness measures how well muscles get oxygen when exercising at a high intensity by looking at the maximal volume of oxygen used (called the VO2 max).
Cardio or aerobic exercises that get your heart rate up and your blood moving – jogging, biking and dancing — help improve your cardiorespiratory fitness. Continue reading
Eating high amounts of red meat increase risk of colorectal cancer while fiber-filled food reduces the risk, AICR research shows. Now comes a study that offers one possible explanation for both links, finding that diets high in red meat and a type of non-digestable fiber have opposite effects on a group of genetic molecules.
The study was published in Cancer Prevention Research.
Study researchers focused on a type of fiber called resistant starch. Our bodies don’t digest resistant starch in the small intestine. Then in the gut, bacteria convert resistant starch into the compound butyrate. In lab studies, this compound protects against colon cancer.
For the study, 23 participants, ages 50 to 75, switched between two types of diets. In one diet each person was given 300 grams — about 10 ounces — of raw lean red meat a day. That’s about the equivalent of a cooked 8 ounce burger. The other diet had the same red-meat content plus a butyrate resistant starch formulation. Each person was on one diet for four weeks then after a four-week washout period, switched to the second diet for four weeks. Continue reading
One of AICR’s Recommendations for Cancer Prevention is that mothers breastfeed their babies, with research showing that being breastfed can help reduce future cancer risk by helping the baby stay a healthy weight as an adult. Now a recent study suggests a new way in which breastfeeding may offer protection from cancer as well as other diseases, finding that young adults who were breastfed have a lower risk of chronic inflammation compared to those not breastfed.
There is a growing body of research suggesting inflammation increases the risk of many chronic diseases, including some cancers. Overweight and obesity, a risk factor for eight cancers, may produce a low level state of chronic inflammation.
AICR also recommends breastfeeding because research suggests it protects mothers against breast cancer. With August being National Breastfeeding Month, the study adds another potential benefit to the many recognized positives of breastfeeding.
Study authors used data from almost 7,000 participants who were part of national study on adolescent health. Twenty years ago, the participants were teenagers going to middle and high school. They, and many of their parents were interviewed. Then in 2007-2008, when the participants were 24–32 years old, their levels of C-reactive protein (CRP) were measured from a blood sample. CRP is a marker of inflammation. Continue reading