Brisk walks fight prostate cancer

Men who have been recently diagnosed with prostate cancer can help keep their disease at bay by taking brisk walks, claim researchers.
Based on their observations, men who power walk for at least three hours a week can halve how much their cancer will grow and spread over the next couple of years.
Strolling does not have the same effect, Cancer Research journal warns.
Experts say it shows that keeping active can improve health.
But they say the findings should be interpreted with caution because the men who did more walking also tended to be younger, leaner, and non-smokers, which could also explain some of the differences seen.
The University of California San Francisco study looked at the outcomes of 1,455 men, mostly in their 60s, who were diagnosed with "localised" prostate cancer, meaning it had not yet started to spread.
''Walking is something everyone can and should do to improve their health” said Lead researcher Erin Richman
The men were asked to say how much exercise and of what type they took in the average week.
During the 31 months of follow up, the US researchers recorded 117 events, including disease recurrence, bone tumours and deaths specifically caused by prostate cancer.
And they found that men who walked briskly for at least three hours a week were far less likely to have one of these events.
The brisk walkers had a 57% rate of progression of disease than men who walked at an easy pace for less than three hours a week.
Lead researcher Erin Richman said: "It appears that men who walk briskly after their diagnosis may delay or even prevent progression of their disease.