Almost 1.8 billion adults are at risk of diseases such as cancer, stroke, dementia and diabetes due to a lack of exercise – and the situation is getting worse, according to a report. The new study from World Health Organisation (WHO) researchers plus academics found physical inactivity globally has risen by about five percentage points between 2010 and 2022. Overall, nearly a third of adults (31%) around the world do not exercise enough, up from 23% (900 million people) in 2000 and 26% in 2010. If current trends continue, experts predict that by 2030, some 35% of people will not be doing enoug…