Prospective data from the Health and Retirement Study, a nationally representative study of older US adults, was analyzed to examine the relationship between optimism and heart failure, adjusting for sociodemographic, biological, behavioral, and psychological covariates. Higher optimism was associated with a lower risk of incident heart failure during the follow-up period, and these effects persisted when accounting for covariates.
Researchers examined the role of marital status in the development of type 2 diabetes. Using prospective data from the Health Professionals Follow-up Study, researchers found that unmarried men (especially widowers) had an elevated risk of developing type 2 diabetes, when compared to married men (adjusting for other factors). This increased risk may be partially mediated by unfavorable changes in lifestyle, diet, and adiposity.