In a new study published in Emotion, researchers have found that the more negative emotion words that spouses use during marital conversations, the higher their cardiovascular reactivity. This discovery could have significant implications for understanding the interplay between emotional expression and physical health in close relationships.
Previous research has long established the importance of close relationships on our health and well-being. Romantic relationships, in particular, hold considerable sway over our emotional and physical health. Studies have shown that how couples navigate conflicts and express emotions during interactions can significantly impact their long-term relationship quality and health.
One area of specific interest has been cardiovascular reactivity – changes in heart rate and blood pressure during stressful interactions. This reactivity is a crucial predictor of long-term health outcomes, with heightened reactivity linked to an increased risk of cardiovascular diseases. The latest study delves deeper into understanding this phenomenon, particularly focusing on how the language used during marital conflicts and positive interactions relates to cardiovascular reactivity.
“Cardiovascular diseases are the leading cause of death worldwide,” said study co-author Claudia Haase, an associate professor at Northwestern University and director of the Life-Span Development Lab. “A long line of research has shown that people whose heart rates speed up more in response to stress or challenge are at greater risk for developing cardiovascular diseases down the road.”
“Researchers have long been interested in the words that couples use when they talk with each other. Words matter. We wondered whether the kinds of words couples use when talking with each other could tell us something about how their hearts would respond.”
“People often experience intense emotions when interacting or arguing with their spouse,” added co-author Tabea Meier, a postdoctoral researcher at the University of Zurich. “Marital interactions thus provide a great testing ground for this research question.”
Conducted in a laboratory setting, the study involved 49 married couples from the greater Chicago area, representing diverse socioeconomic, racial, and ethnic backgrounds. The choice of a diverse participant group was deliberate, aiming to provide a broader understanding of these dynamics across different sections of society.
In the lab, each couple engaged in two types of videotaped conversations – one involving a conflict and the other, a positive discussion. These conversations were preceded by a period where the couples relaxed and did not engage in any conversation, serving as a baseline for physiological measurements.
During these interactions, physiological measures, specifically the time interval between heartbeats (an indicator of cardiovascular reactivity), were recorded continuously for both spouses. Additionally, the conversations were transcribed, and the language used was analyzed. The focus was on quantifying the frequency and diversity of both negative and positive emotion words used by the spouses.
The findings were revealing and somewhat surprising. The study showed that the use of more negative emotion words, particularly those related to anger, was associated with higher cardiovascular reactivity. This effect was consistent regardless of the couple’s socioeconomic status, the type of conversation (conflict or positive), and across both husbands and wives. Interestingly, the study found no significant association between the use of positive emotion words and cardiovascular reactivity.
“Partners who used more negative emotion words (especially anger words) in conversations with each other experienced greater increases in their heart rate,” Meier told PsyPost. “Our research adds to other research showing that the experience of emotions often comes with changes on different levels, including physiology and language. This opens the door for future research to better understand the mechanisms through which language and emotions are connected.”
While the study is robust in its methodology and provides valuable insights, it’s crucial to note some limitations. Firstly, the sample size, though diverse, was relatively small, which might limit the generalizability of the findings. Moreover, the study’s design was cross-sectional, capturing data at a single point in time. This means that while a relationship between negative emotion word use and cardiovascular reactivity was observed, it does not necessarily imply causation. It’s possible that increased cardiovascular reactivity could influence the language used during interactions, rather than the other way around.
In light of these findings, future research could look into the long-term health implications of emotion word use in close relationships. It would be valuable to explore whether certain ways of expressing emotions in words could contribute to the development of cardiovascular diseases over time. Additionally, understanding the specific autonomic nervous system responses associated with different types of emotional expressions could provide deeper insights into the physiological processes at play.
“While we find that the use of more negative emotion words relates to higher heart rate reactivity, it is clear that it is sometimes also important and beneficial to express how we are feeling,” Meier noted. “More research is needed to get a more nuanced picture on when and how emotion word use may signal risk factors for cardiovascular health. This will allow to perhaps find the right balance between expressing emotions and not become too overinvolved in negative emotions.”
“Words are only one part of the story when it comes to heart rate reactivity,” Haase told PsyPost. “And different words may matter for different couples. Clearly, this is an area where we need more research with couples from diverse backgrounds.”
These findings are important as they highlight the potential health implications of how emotions are expressed in words during marital interactions. It seems that expressing negative emotions, especially anger, in words can have immediate physiological effects, potentially posing a risk for cardiovascular health. This is in line with the functionalist perspective on emotions, which posits that emotions manifest in various ways, including physiological responses and language use.
“There is growing scientific evidence that language can provide a window into our inner lives,” Haase said. “Our study shows that language can also provide a window into our hearts.”
The study, “Feelings in Words: Emotion Word Use and Cardiovascular Reactivity in Marital Interactions“, was authored by Tabea Meier, Jacquelyn E. Stephens, and Claudia M. Haase.
