New Study Highlights Impact of Light Activity on Cancer Risk

Exercise has long been associated with a reduced risk of cancer, but it doesn’t always require intense workouts or lengthy gym sessions. Recent research from Oxford has indicated that even light activities like casual walking can help lower cancer incidence.

The findings suggest that the number of steps taken is more crucial than the speed at which one walks. Interestingly, the study points out that just four minutes of vigorous daily activity might significantly lower cancer risk for those who typically don’t exercise.

A report from the Oxford Centre for Early Cancer Detection mentions that individuals who manage about 7,000 steps daily have an 11% lower cancer risk compared to those taking roughly 5,000 steps. This risk can decrease by 16% for those who reach 9,000 steps each day.

Even common activities like grocery shopping and housework can contribute to a decline in cancer risk. Overall, participants with the highest levels of daily physical activity were found to be 26% less likely to develop cancer when compared to those with the least activity, after factoring in other health conditions and lifestyle choices.

This study, published in the Sports Medicine Journal in the UK, analyzed data from about 85,394 UK biobank participants, with an average age of 63. The data was matched against future cancer diagnoses in 2,633 individuals over nearly six years.

Unlike previous studies that relied on self-reported activity levels, this research utilized more precise data from activity trackers, enhancing the reliability of the results. Aiden Doherty, the senior research author and professor at Oxford Population Health, stated that the research underscores the importance of all kinds of movement.

“Whether you’re increasing daily steps, doing light activities, or engaging in moderate to intense exercise, every level of physical activity seems to play a role in reducing cancer risk,” he noted.

Doherty’s findings align with both national and international physical activity guidelines, indicating that those involved in simple, low-intensity actions, such as walking, are at a decreased risk of developing cancer.

Dr. Marc Siegel, a senior medical analyst and professor at NYU Langone Health, highlighted that cancer is often linked to inflammation, which is frequently associated with a sedentary lifestyle. He mentioned, “All kinds of activities, including walking, boost metabolic functions and reduce inflammation.”

The results of this study are consistent with ongoing research in the field, further establishing the health benefits of regular movement.

Experts from the National Institutes of Health and the National Cancer Institute also contributed to this study, which was funded by both the NIH’s Intramural Research Program and the Oxford Cambridge Scholars Program.