 The survey also recorded that 27 per cent of Welsh adults had a long-term chronic illness, such as arthritis, asthma, diabetes and heart disease.The 2018 National Survey of Wales, which enquired into health-related lifestyle choices, reported that 19 per cent of the adult population were smokers, 18 per cent admitted drinking alcohol above weekly recommended guidelines, while 53 per cent undertook the recommended 150 minutes of physical activity each week.The population of Wales doubled from 587,000 in 1801 to 1,163,000 in 1851 and had reached 2,421,000 by 1911.