The Longest-Lasting Relationship: Patterns of Contact and Well-Being Among Mid- to Later-Life Siblings.

Objectives: Adults in mid to later life experience shrinking social networks, which may hinder well-being. Siblings may be important sources of social contact. Yet, little is known about adults' patterns of contact with siblings and how contact is linked to well-being.

Biological, Psychological, and Social Predictors of Longevity Among Utah Centenarians.

Studies of longevity among centenarians examine biological, psychological, and social factors, yet few consider these components concurrently. This study explores such factors individually and collectively, as they are related to days lived past the age of 100 years. Data from 268 family members of centenarians identified in the State of Utah between 2008 and 2015 were used in negative binomial models predicting number of days lived among the centenarians.