Lack of physical activity – along with unhealthy diets – are key risk factors for major non-communicable diseases such as cardiovascular diseases, cancer, and diabetes, according to the World Health Organisation (WHO).Thirty to 70% of EU citizens are currently overweight, while 10-30% are considered obese,according to the WHO, which warned against an obesity crisis in Europe over the coming decades.To counter the “epidemic”, the WHO recommends 150 minutes of moderate physical activity each week. This, it argues, would reduce the risk of ischaemic heart disease by approximately 30%, the risk of diabetes by 27%, and the risk of breast and colon cancer by 21–25%.