Increased physical activity is effective in preventing NIDDM, and the protective benefit is especially pronounced in persons at the highest risk for the disease.

Among Harvard alumni aged 35–74 in 1962 or 1966, incidence rates of physician‐diagnosed depression, together with suicide rates, were examined during a 23–27‐year follow‐up period, by antecedent physical activity habits and other personal characteristics. A total of 387 first attacks of depression developed among 10,201 alumni who survived through 1988; 129 suicides occurred among 21,569 alumni during follow‐up through 1988. Depression rates were lower among the physically active and sports players, higher among cigarette smokers, unrelated to alcohol consumption, and higher among alumni reporting such personality traits as insomnia, exhaustion, cyclothymia, and self‐consciousness. Suicide rates were largely unrelated to antecedent physical activity and alcohol consumption, higher among smokers, and substantially higher among men reporting the personality traits that predicted increased rates of depression. Report number LIII in a series on chronic disease in former college students.

The Internet and cloud computing changed the way business operate. Standardised web-based applications simplify data interchange which allow internal applications and business partners systems to become interconnected and interoperable. This study conceptualises the smart and agile hospitality enterprises of the future, and proposes a smart hospitality ecosystem that adds value to all stakeholders. Internal data from applications among all stakeholders, consolidated with external environment context form the hospitality big data on the cloud that enables members to use business intelligence analysis to generate scenarios that enhance revenue management performance. By connecting to smart tourism network, sensors and content extractors can assist to collect external information, and beacons to deliver context-based promotion messages and add value. The proposed model enables fully integrated applications, using big data to enhance hospitality decision making as well as strengthen competitiveness and improve strategies performance.

ABSTRACT. The tourism and hospitality industries have widely adopted information technology (IT) to reduce costs, enhance operational efficiency, and most importantly to improve service quality and customer experience. This article offers a comprehensive review of articles that were published in 57 tourism and hospitality research journals from 2005 to 2007. Grouping the findings into the categories of consumers, technologies, and suppliers, the article sheds light on the evolution of IT applications in the tourism and hospitality industries. The article demonstrates that IT is increasingly becoming critical for the competitive operations of the tourism and hospitality organizations as well as for managing the distribution and marketing of organizations on a global scale.

Adolescent alcohol use remains an important public health concern. One of the most salient and consistent predictors for drinking behaviour among young people is peer influence. A systematic review of longitudinal studies that examined the effect of peer influence on adolescent alcohol use between January 1997 and February 2011 is presented. Twenty-two studies fulfilled inclusion criteria and were reviewed. All but one study confirmed affiliation with alcohol-using or deviant peers as prospective predictors for the development of adolescent alcohol use. Findings revealed that existing longitudinal studies that have used multivariate analytic techniques to segregate peer influence (whereby adolescents start drinking after exposure to alcohol-using friends) and peer selection (whereby adolescents that start drinking without alcohol-using friends subsequently seek out drinking peers) effects consistently report significant peer influence effects. However, studies are unable to elucidate the relative contribution and developmental sequence of peer influence and selection. Existing research is synthesised to model the developmental influence of peer processes on adolescent alcohol use. Future research directions are recommended to inform better designed investigations that can lead to more effective endeavours to address peer processes in prevention efforts.

Purpose – In order to enhance operational efficiency, improve service quality and reduce costs, practitioners in the hospitality industry have widely adopted and implemented information and communication technologies (ICTs) in their businesses. Understanding what has been done and how ICTs have performed in the past and are performing in the present could assist practitioners and researchers in identifying research gaps and formulating future plans. This paper aims to address these issues Design/methodology/approach – This study analyzed 88 full-length ICT-related research articles that were published in the period 1999-2008 in eight leading hospitality journals. The research focuses on all selected articles were in suppliers ' perspectives, and each article was analyzed by content analysis. Findings – Seven dimensions were formed after content analysis including human resources and training, security, reservation, revenue management, marketing, guest services, as well as strategic and operational management. Published articles were comprehensively overviewed on ICT usage in suppliers ' perspectives. In this paper, suppliers refers to the providers of hospitality services. Research limitations/implications – The major limitation of this study is the inclusion of only eight leading journals. Nevertheless, findings should be of use to researchers and practitioners to understand various ICT applications in the hospitality industry. Originality/value – A major contribution of this paper is its comprehensive review of previous studies and their contributions to hospitality. Future research areas on ICT development and implementation in suppliers ' perspective are also offered.

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We examined patterns of physical activity and other characteristics that might deter hypertension or delay all-cause mortality among university alumni, 1962-1985. Collegiate sports play did not alter hypertension incidence, nor did contemporary walking, stair-climbing, or light sports play among 5463 University of Pennsylvania alumni, 739 of whom developed hypertension. But vigorous sports play reduced hypertension incidence; and overweight, gain in weight, history of parental hypertension, or any combination of these, increased it. Among 819 hypertensive Pennsylvania alumni (138 died during follow-up), vigorous sports play had minimal influence on mortality; but freedom from overweight and cigarette smoking deferred death. Among 16,936 Harvard College alumni, of whom 2614 died during follow-up, lack of vigorous sports play, or presence of hypertension, cigarette smoking, and overweight increased risk of premature mortality, heightened by any combination of these adverse characteristics. Overall, we found an inverse relationship between vigorous sports participation and hypertension risk but a direct relationship between risk and weight-for-height, weight gain, or parental hypertension. With regard to all-cause mortality, cigarette smoking and hypertension were most hazardous for the individual; smoking and lack of vigorous recreational play were most hazardous for the alumnus population as a whole.