Researchers at the University of Missouri are investigating whether couples’ daily routines, sleep patterns and relationship quality are linked to blood glucose levels and heart disease risk. The National Institutes of Health-funded study will examine how partners’ shared experiences may influence their physical health.
Eunjin Tracy, a researcher in the University of Missouri’s College of Education and Human Development, is leading the study to determine whether the daily experiences of couples can be linked to measurable changes in health.
The research will focus on couples in which at least one partner has type 2 diabetes. Researchers will examine whether sleep patterns, everyday routines and relationship quality are associated with changes in blood glucose levels and, ultimately, heart disease risk.
“We tend to think about health as something that belongs to the individual,” Tracy said. “But when two people share their lives, their daily experiences are intertwined. We want to understand what that means for their health.”
Tracking Sleep, Blood Glucose and Relationship Experiences
The study will examine how ordinary aspects of shared life, from differing bedtimes to stressful workdays and mealtime habits, may relate to partners’ health. Researchers will also consider how support between partners is experienced and whether reminders about health routines are perceived as helpful or as nagging.
Both partners will wear devices that track their sleep and continuous glucose levels for 20 days. They will also report on their daily routines and relationship experiences.
By analysing these measurements together, the research team will investigate whether changes in one partner’s daily life correspond with changes in the other partner’s experiences or blood glucose levels.
The researchers hypothesise that couples with stronger relationship quality and more consistent daily routines may have healthier blood glucose levels and, consequently, a lower risk of heart disease.
However, consistency does not necessarily mean that both partners follow identical schedules. Tracy explained that the study will examine the regularity of each individual’s routines and how those routines fit into the couple’s shared life. For example, one partner may consistently go to bed at 8 p.m., while the other regularly goes to bed at 10 p.m.
An Interdisciplinary Approach to Understanding Heart Health
Tracy is working with University of Missouri specialists in nutrition and exercise physiology, psychology, medicine and statistics. The collaboration will allow the team to examine the relationship between daily habits, relationship experiences and physical health from several perspectives.
“It’s a very interdisciplinary research environment here at Mizzou, which makes it the perfect place for this work to thrive,” Tracy, who works in the Department of Human Development and Family Science, said.
The study will consider how partners may influence one another’s sleep, eating habits, physical activity and experiences of stress. Researchers aim to determine whether these everyday interactions are reflected in measurable health outcomes.
Findings Could Inform Future Health Interventions
If the findings support the researchers’ hypothesis, they could help inform future approaches to health interventions by recognising the role partners play in supporting lifestyle changes.
Rather than focusing exclusively on individuals, future interventions might involve both partners and account for how shared responsibilities, routines and relationship dynamics affect a person’s ability to maintain healthier habits.
The study may also contribute to a broader understanding of health as a shared experience. By examining how couples’ daily lives intersect with blood glucose regulation and potential heart disease risk, the researchers hope to clarify whether relationship quality and routine consistency are important factors in physical health.
The research is still investigating these connections, and the study’s findings will be needed to establish whether the proposed relationships are supported by the data.
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Arun Kumar N