Controlling Your "App"etite: How Diet and Nutrition-Related Mobile Apps Lead to Behavior Change.

Background: In recent years, obesity has become a serious public health crisis in the United States. Although the problem of obesity is being addressed through a variety of strategies, the use of mobile apps is a relatively new development that could prove useful in helping people to develop healthy dietary habits. Though such apps might lead to health behavior change, especially when relevant behavior change theory constructs are integrated into them, the mechanisms by which these apps facilitate behavior change are largely unknown.

Shifting sands: changing regional and gender-specific patterns of HIV/AIDS mortality in Canada, 1987 to 2008.

Objective: To assess patterns of HIV-related mortality by period, gender and age group in Canada from 1987 to 2008.

Methods: We applied standard demographic techniques to assess changes in HIV/AIDS mortality over five time periods: 1987-1991, 1992-1996, 1997-2001, 2002-2006, and 2007-2008. HIV/AIDS-related mortality was based on deaths in which HIV infection or AIDS was reported as the underlying cause of death.