A Purdue University professor has won a $2 million grant to study how people's changing moods can affect their physical health.
The National Institutes of Health grant will allow Daniel Mroczek to continue his decade-long research into the links between personality traits and physical well-being.
The professor of human development and family studies says the five-year grant will help him closely examine how personality traits such as chronic worrying can affect individuals' risk of premature death.
The study will focus on older adults, but some of their health and personality information has been collected for decades.
Mroczek says that as people age, many of them become less worrisome and neurotic and become more conscientious, such as in keeping doctor's appointments, and that can affect their health.