Santos, AC; Ebrahim, S; Barros, H; (2007) Alcohol intake, smoking, sleeping hours, physical activity and the metabolic syndrome. Preventive medicine, 44 (4). pp. 328-334. ISSN 0091-7435 DOI: https://doi.org/10.1016/j.ypmed.2006.11.016 Full text not available from this repository.

Woodcock, J; Franco, OH; Orsini, N; Roberts, I; (2011) Non-vigorous physical activity and all-cause mortality: systematic review and meta-analysis of cohort studies. International journal of epidemiology, 40 (1). pp. 121-138. ISSN 0300-5771 DOI: https://doi.org/10.1093/ije/dyq104 Full text not available from this repository.