Taking regular exercise is going to become increasingly important in helping to prevent cancers as the UK emerges from lockdown, say scientists. Since the pandemic began year ago, growing numbers of people have reported gaining weight after cutting down on physical activity while others say they have been eating more junk food.
“We need to eat better food, but it is equally clear that regular exercise is also very important in cancer prevention.” Prof Bauld - Edinburgh University.
While smoking remains the main cause of cancer in the UK, obesity is now the second highest risk and in the future is likely to become the main cause. It is expected that by 2040 obesity will have overtaken smoking as the leading preventable cause of cancer in women, a pattern that men will follow a few years later.
Among the cancers that have been shown to benefit from improved physical activity are breast and bowel cancers. Those who have been treated for primary tumours have better chances of their cancers not returning if they exercise more often and have improved diets, it has been found.
A recent study by Cancer Research UK showed that more than 135,000 cases of cancer – about 4 out of 10 British cases – could be prevented each year largely through lifestyle changes, with increased physical activity of any kind playing a key role.
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