Overseas health insurance customers who have been diagnosed with cancer might want to discuss the benefits of exercising outdoors with their doctor.
According to recent comments from Professor Tim Oliver, founder of the male cancer charity Orchid, brisk walking out of doors can be beneficial to the health of people with cancer.
He explained: "It is possible that one of the main ways that exercise prevents cancer is that, as it is mostly outdoors, the patients whose cancers grow slower do so because they have higher vitamin D levels.
"These enable the body to better resist minor infections that get into the prostate at any time of life, from puberty onwards."
Earlier this month, the University of California published research revealing a link between brisk walking and a lower risk of prostate cancer progression.
Expatriate health insurance customers can discuss the idea further with their doctor if they are interested in boosting their cancer treatment.