. 11. 12. Page | 136 Cacioppo JT, Patrick W. Loneliness: Human Nature and the Need for Social Connection. New York: W.W. Norton & Company, 2008. Bunyan J. Grace Abounding to the Chief of Sinners. Grand Rapids, MI: Baker Book House, 1986. Boomsma DI, Willemsen G, Dolan CV, Hawkley LC, Cacioppo JT. Genetic and environme