Higher diastolic blood pressure may be associated with negative emotions

A genetic analysis published in General Psychiatry suggests that higher diastolic blood pressure may be associated with a stronger tendency to feel worry, nervousness and other negative emotions.

The results point to a possible biological link between cardiovascular health and personality.

The personality trait examined was neuroticism, which refers to a tendency toward emotional distress. It is not the same as a diagnosis of anxiety or depression.

Diastolic blood pressure is the lower figure in a blood pressure reading. It reflects the pressure in the arteries while the heart is resting between beats.

To explore possible cause-and-effect relationships, the researchers used Mendelian randomization, a method that relies on naturally occurring genetic variation tied to specific traits. Like all such analyses, its conclusions depend on several assumptions.

The study combined genetic data from more than eight large research groups, mostly involving people of European ancestry. In total, the researchers looked at more than 1,000 genetic markers connected to blood pressure.

They found evidence that genetically predicted higher diastolic pressure was linked to greater neuroticism, which the source article describes as the most notable association among the mental health measures examined.

Since the two blood pressure numbers provide different information, it is useful to understand why a blood pressure reading can be inaccurate.

The same pattern was not seen for depression, anxiety or general happiness. That difference matters because personality traits and mental health conditions can overlap, but they are not interchangeable.

The findings should not be taken to mean that a person with high blood pressure will necessarily become more worried or emotionally unstable. Genetic studies show trends across populations, not certain outcomes for individuals.

Nor do the results prove that blood pressure medication would alter a person’s personality. Answering that question would require studies designed specifically to test treatment effects.

Because the genetic information came mainly from European populations, it is still unclear how well the results apply to people of other ancestries. More research is also needed to understand the biological mechanisms behind the association.

Blood pressure is already important because of its connection to heart and blood vessel disease. This study adds another question: whether cardiovascular regulation may also shape emotional tendencies.

For now, the research offers an interesting association rather than a new psychological treatment. Further studies may help explain the pathways involved and show whether the relationship has practical clinical value.

Notably, the study looked at whether genetically predicted blood pressure might influence a personality measure. It did not simply ask whether people who worry more tend to have higher blood pressure at a single point in time.

If you are interested in this topic, please read articles about MIND diet could help prevent high blood pressure, and Leafy greens and beets could prevent high blood pressure in healthy people.

For more information, please see articles about Impact of vitamins on high blood pressure you need to know, and Benefits of a low-sodium diet for people with high blood pressure.

Source: Not specified in the source article.