Healthy systems are important for us, but unhealthy systems exist everywhere. Healthy systems behave the manner they are designed, but not the unhealthy ones. It is a meaningful thing for us to turn an unhealthy system into a healthy one. We propose a process algebra with chaos executing policy to specify the behavior of unhealthy systems. For unhealthy systems, we also propose the equivalent r...

OBJECTIVES To study the determinants of health-related quality of life (HRQoL) in Irish patients with diabetes using the Centres for Disease Controls' (CDC's) 'Unhealthy Days' summary measure and to assesses the agreement between this generic HRQoL measure and the disease-specific Audit of Diabetes Dependant Quality of Life (ADDQoL) measure. RESEARCH DESIGN AND METHODS Data were analysed from...

In this paper, we carry out a theoretical analysis of the strategic choice made by firms regarding the type of food they market when they face consumers who care about the healthy/unhealthy attributes of the product but incur in emotional/health costs when the food they consume has unhealthy attributes. We consider a two-stage game. In the first stage, one of the firms chooses the unhealthy con...

Much research has addressed behavior change but has tended to focus on short term changes. This study aimed to explore the mechanisms behind sustained changes in behavior and involved qualitative interviews with 34 ;success stories' who had either lost weight through changes in diet and exercise (n = 24) or stopped smoking (n = 10) and had maintained this change for at least 3 years. The result...

The Internet and social media have become increasingly important for children today, as they seek information, friends, and social support online. Social media is also home for communities that may advocate unhealthy behavior. Proanorexia (proana) and probulimia sites and online communities are publicly available; they are interactive and promote “thinspiration” (“inspirational” pictures of ext...

Objective To compare cancer screening and flu vaccination among persons with and without unhealthy substance use. Design The authors analysed data from 4804 women eligible for mammograms, 4414 eligible for Papanicolou (Pap) smears, 7008 persons eligible for colorectal cancer (CRC) screening and 7017 persons eligible for flu vaccination. All patients were screened for unhealthy substance use. T...

BACKGROUND To explore the extent and nature of television food advertising especially unhealthy food advertising to primary school children in Xi'an, China. METHODS Television data were recorded for 2 weekdays and 2 weekend days between 6:00 and 22:00 during May and June in 2012 from a total of five television channels most popular with children in Xi'an. Pearson χ (2) tests and logistic regr...

OBJECTIVES The current study sought to compare different features of unhealthy exercise on associations with disordered eating and their ability to identify individuals with eating disorders. A secondary aim of the study was to compare prevalence and overlap of different aspects of unhealthy exercise and potential differences in their gender distribution. DESIGN Cross-sectional epidemiologica...