Type D Personality: The Distressed Personality Pattern

What Type D personality is

Type D describes a specific combination of two personality traits that, together, is more than the sum of its parts. The first, negative affectivity, is a general tendency to experience worry, irritability, gloom, and tension across situations and over time, a disposition toward feeling bad rather than a reaction to any one event. The second, social inhibition, is a tendency to hold that distress in, avoiding sharing it with other people out of a fear of disapproval or rejection.

Neither trait alone defines Type D. Plenty of people experience frequent negative emotion but talk about it openly, and plenty of reserved people are not particularly anxious or gloomy underneath. Type D specifically describes the pairing: feeling bad often, and keeping it to yourself, which the theory holds produces a distinct pattern of chronic, socially unshared distress.

This page is an explainer rather than a test result page, because the standard instrument used to measure Type D, the DS14, is a licensed clinical and research questionnaire, and Psychology.com does not reproduce licensed instruments. There is no /types/type-d result key on our live Type A Personality Test or any other test on this site.

Where the construct came from

The Type D concept was developed by Belgian health psychologist Johan Denollet, building on cardiology research through the 1990s that had noticed certain patients with heart disease showed a distinctive combination of chronic distress and social withdrawal, distinct from the hostility-driven Type A pattern that had dominated earlier personality-and-heart research.

Denollet formalized the construct with a validated measurement tool in a 2005 paper in Psychosomatic Medicine, DS14: Standard Assessment of Negative Affectivity, Social Inhibition, and Type D Personality, which established the 14-item scale, seven items for each trait, and the specific cutoff scores researchers use to classify someone as Type D. That paper, based on more than 3,800 participants across general population, cardiac, and hypertension samples, gave the field a consistent way to study the construct across different research groups for the first time.

Unlike the older Type A and Type C ideas, Type D emerged from within an already more methodologically careful era of health psychology, with the measurement tool and the theory developed together rather than the theory arriving first and a measurement scale following decades later.

What the evidence actually shows

Type D has a genuinely active research literature, which sets it apart from Type C. A 2012 systematic review and meta-analysis by Grande, Romppel, and Barth in Annals of Behavioral Medicine, pooling multiple prospective studies of people with existing cardiovascular disease, found that Type D personality was associated with a meaningfully higher risk of further adverse cardiac events and worse quality of life.

The research community has also been appropriately critical of its own findings. A commentary the same year by de Voogd, Sanderman, and Coyne, published in the same journal, pointed to a pattern common in this literature: small early studies reported very large effects, while the largest, most rigorously designed studies found the effect shrinking toward null, a pattern consistent with publication bias inflating the apparent strength of the link in the earlier evidence base.

The fair, current read is that Type D is a real, replicated construct with a plausible, still-studied connection to worse outcomes specifically in people who already have cardiovascular disease, not a general population health risk, and that the size of the effect is smaller and less certain than the earliest, most widely cited studies suggested.

What it is often confused with

Type D gets confused with Type A because both patterns involve some form of chronic distress connected to cardiovascular health, but the mechanisms described are almost opposite. Type A's hostility component is about distress expressed outward, competitively and sometimes angrily, while Type D's social inhibition is specifically about distress that stays unexpressed. Someone can score high on one and low on the other.

It is confused even more often with Type C, since both involve a pattern of holding difficult emotion inside rather than expressing it, and both use letter names that suggest a shared family. The difference that matters most: Type D is a stable, well-measured personality construct with a validated instrument and an active, self-correcting research literature studying its link to cardiac prognosis specifically. Type C is a 1980s hypothesis about a possible cancer link that later systematic reviews did not confirm, described in full on our Type C personality page.

Type D is also sometimes mistaken for depression or social anxiety, since negative affectivity overlaps with low mood and social inhibition overlaps with social discomfort. Type D is a personality trait combination studied primarily in cardiac populations. It is not a diagnosis of depression or anxiety, and it is measured with a different instrument than any mental health screening tool.

What to do if you recognise yourself

Recognising a pattern of frequent worry or low mood paired with reluctance to talk about it with other people is worth taking seriously, both because chronic unshared distress is uncomfortable on its own terms and because the research link, whatever its exact size, is strongest in people who already have a cardiovascular condition. If that describes your situation, mentioning the pattern to your cardiologist or physician is a reasonable step, alongside any other risk factors already being managed.

Since the DS14 itself is not something Psychology.com can offer, the more useful starting points here are our Stress Level Test, which gives a plain-language read on where your current stress load sits, and our Mental Health Assessment, which screens more broadly for symptoms of low mood and anxiety that often accompany a socially inhibited, high-negative-affectivity style.

For many people, the more actionable half of this pattern is the social inhibition piece rather than the negative affectivity piece, since building even one or two relationships where distress can be shared honestly is something a therapist can help with directly, and it addresses the specific mechanism, unshared chronic stress, that the theory identifies as the risk.

What the research says, in plain terms

Type D sits in a middle position between the other two constructs on this page. It is not as settled and universally supported as basic findings in cardiovascular epidemiology, and its effect sizes have shrunk under scrutiny the way Type A's did decades earlier, but it also has a validated measurement tool, a body of prospective research, and enough internal self-correction, researchers publishing critiques of their own field, to be taken seriously as an active, evolving line of study rather than a settled fact or a debunked idea.

This is not a diagnosis, and it is not a personal cardiac risk score. It describes a personality pattern studied primarily for its association with outcomes in people who already have heart disease, and even there, the honest current estimate of its effect is more modest than the earliest headlines about it suggested.

How Type D relates to Type A and Type B

Type A, Type B, and Type D are grouped here because all three come from cardiology-adjacent research into personality and heart health, even though they describe different mechanisms and emerged in different decades. Type A and Type B, measured by our Type A Personality Test, focus on time urgency, achievement striving, and hostility. Type D focuses on negative affectivity and social inhibition, a distinct pair of traits that can coexist with either a Type A or a Type B profile on the other scale.

There is no test on this site that produces a Type D result, and there will not be one built from the licensed DS14 instrument. Anyone curious about the emotional-expression side of this territory can take the Type A Personality Test to see where hostility and time urgency sit, and use our Stress Level Test or Mental Health Assessment to look at the negative-affectivity and social-inhibition territory that Type D describes, without a formal Type D score attached to either result.