Research shows that drinking alcohol increases cancer risk. Now, a new study is suggesting that going for that daily run or walk might offset risk for cancer mortality.
This study, published in the British Journal of Sports Medicine, found the link between alcohol and cancer mortality goes away when people meet the minimum physical activity guidelines. These findings have been making headlines, but do they give you license to drink with abandon as long as you’re physically active? Not so fast.
The study used data from over 36,000 British men and women ages 40 and up who were interviewed between 1994 and 2006 about their physical activity and alcohol consumption habits as part of larger, ongoing health surveys. Researchers classified participants as never-drinkers, ex-drinkers, or current drinkers based on what they told interviewers. Current drinkers were further categorized by how much alcohol they drank in the past week. Read more… “Can Exercise Offset Alcohol-Related Cancer Death?”
AICR’s evidence shows that having too much body fat increases risk for eleven cancers. But researchers are looking at whether losing weight, once overweight, would lead to lower risk for these cancers. Now a new study from researchers at Fred Hutchinson Cancer Research Center shows how weight loss – through diet alone or diet and exercise – might change pro-cancer substances in the body.
The 12-month controlled trial of 439 healthy, postmenopausal women with overweight/obesity included 4 randomized groups: calorie restriction diet; moderate activity (goal of 3.75 hours per week), diet and exercise, and no intervention. Researchers wanted to see if these lifestyle changes would affect four substances in the body (biomarkers) that influence formation of blood vessels needed for tumor growth. Fat cell growth also requires a greater blood supply, so these biomarkers are also associated with increasing fat tissue.
For postmenopausal women who are overweight, it makes sense that losing weight could reduce their risk of breast cancer because being overweight or obese increases the risk. But when overweight women are working to shed pounds, is it primarily exercise or cutting calories that makes more of a difference in lowering the risk?
Both, suggests a new study, with weight loss fueled primarily by exercise possibly leading to even more benefits – at least in the short-term for certain markers of breast cancer.
The study is one of the few randomized controlled trials that focuses on teasing apart the effect of diet versus exercise on breast cancer risk. It was published this week in Cancer Epidemiology, Biomarkers & Prevention.