The Health Cost of an Unhappy Relationship — and What I See in My Practice

The research is unambiguous: the quality of close relationships is one of the most powerful determinants of women's mental and physical health. Here is what that means in practice.

By Mrs. Richa Kohli · Psychologist, MA Psychology (Clinical & Child Specialisation)

I want to start with something I observe consistently in my clinical practice: the patients who take the longest to improve are often not those with the most severe symptoms. They are those whose home environment continues to generate the stress that produced those symptoms in the first place.

It is difficult to treat anxiety in someone who returns each day to a relationship characterised by criticism, unpredictability, or contempt. It is difficult to treat depression in someone whose primary relationship provides no warmth, no support, and no sense of safety. Therapy can build tools and insight; it cannot substitute for the environment in which a person spends most of their waking and sleeping hours.

This is not to say that difficult relationships are irresolvable, or that leaving is always the answer, or that the woman is responsible for the relationship's quality. What I am saying is that the relationship you are in is not separate from your mental and physical health. It is one of its primary determinants.

What the research actually shows

The quality of close relationships — specifically the primary intimate partnership — is one of the strongest predictors of overall health outcomes for women, across multiple decades of research.

A landmark study in the journal Psychosomatic Medicine, tracking over 10,000 participants, found that women in relationships characterised by high conflict showed significantly elevated markers of cardiovascular inflammation — specifically CRP and IL-6 — compared to women in satisfying relationships. Chronic relational stress activates the same biological pathways as other chronic stressors: sustained cortisol elevation, immune dysregulation, inflammatory signalling.

A meta-analysis published in Social Science and Medicine found that relationship quality is a stronger predictor of depression in women than employment status, financial security, or physical health status. Not correlated with it. Stronger than it.

Indian research adds important context. A study published in the Indian Journal of Psychiatry found that marital conflict and lack of partner support were among the strongest independent risk factors for common mental disorders in Indian women — outweighing many of the physical health risk factors that receive more clinical attention.

What chronic relationship stress does to the body

The biology is worth understanding, because it helps make concrete what can feel like an abstract emotional experience.

The stress response never switches off. When you live in a relationship where you are waiting for the next criticism, the next outburst, the next withdrawal of warmth, the brain treats this as ongoing threat. The amygdala stays partially activated. Cortisol levels remain chronically elevated. The hypothalamic-pituitary-adrenal axis — the body's main stress management system — loses its normal diurnal rhythm. This has consequences throughout the body.

Hormonal disruption. Sustained cortisol elevation suppresses the hypothalamic-pituitary-gonadal axis — the hormonal communication system that regulates the menstrual cycle. I regularly work alongside gynaecologists who refer women with unexplained cycle irregularity, worsening PMDD, or disrupted fertility — and when we take a detailed history, a high-conflict or chronically stressful relationship is frequently part of the picture. The body treats sustained relational stress as a threat to survival, and reproduction is one of the first systems to be suppressed.

Sleep. Chronic relationship stress is one of the most consistent predictors of poor sleep quality in women. And the effects of poor sleep are systemic: impaired immune function, accelerated cellular ageing, increased inflammatory markers, elevated cortisol, worsened mood and cognitive function.

Physical pain. The relationship between psychological distress and physical pain is bidirectional and well-documented. Women in high-conflict relationships report higher rates of chronic pain conditions — headache, back pain, fibromyalgia — than those in satisfying relationships. This is not psychosomatic in the dismissive sense of the word. It is a genuine neurobiological phenomenon: chronic psychological stress lowers pain thresholds and amplifies pain signalling.

What this looks like in practice — the Indian context

I want to be specific about what I see in Indian women's experiences, because the cultural context shapes both the form that relational stress takes and the barriers to addressing it.

The visibility problem. In joint family settings, a woman can be surrounded by people and profoundly alone. The isolation of an unhappy marriage is not always the physical isolation of an empty house — it is often the social isolation of being unable to say the truth in front of an audience of family members whose approval is contingent on the marriage appearing successful.

The stigma around marital difficulty. In many Indian families and communities, acknowledging that a marriage is unhappy carries a stigma that acknowledging physical illness does not. Women routinely underreport relationship difficulty to healthcare providers — including psychiatrists and psychologists — because they have been conditioned to treat it as private, as something they should manage internally, as something that reflects on their adequacy as a wife.

The economic reality. Many Indian women do not have independent financial resources. Financial dependence on a partner or in-laws creates real constraints on choices. I name this not to excuse it, but to be honest that "just leave" is not a meaningful response to the complex reality of many women's lives.

The expectation of endurance. Women in India are frequently praised for their capacity to endure difficulty without complaint. This is framed as a virtue. In my clinical experience, it is also a significant barrier to seeking help, because asking for support can feel like a failure of that expected endurance.

What I actually see changing things

Couples therapy, when both partners are genuinely willing, can transform relationships that seem stuck. Emotionally Focused Therapy (EFT) and the Gottman Method are the evidence-based approaches I most commonly recommend. The key word is genuinely — couples therapy is not effective when one partner attends to demonstrate willingness while resisting change. But when both people are motivated, even relationships that appear very damaged can be repaired.

Individual therapy is valuable regardless of what the partner does or does not agree to. It addresses your own patterns — the ways that past experiences shape how you interpret and respond to the present relationship — and builds the clarity and groundedness to make better decisions about your situation. CBT and ACT (Acceptance and Commitment Therapy) both have strong evidence for the anxiety and depression that accompany relationship distress.

Safety planning, when needed. If there is physical violence, sexual coercion, or severe emotional abuse — controlling behaviour, financial control, isolation from family and friends, humiliation — the clinical priority shifts. Therapy for the relationship is not appropriate when one partner is not physically safe. Safety planning, connection to appropriate support resources, and practical planning come first.

A note on what I am not saying

I am not saying that an unhappy relationship means you should leave it. I am not saying that the relationship is necessarily the cause of your mental health difficulty. I am not saying that the problems in your relationship are not partly your own contribution to address.

What I am saying is that the relationship you are in is health-relevant data, and it deserves to be part of the clinical picture — not kept separate from it, not treated as private information that your psychologist does not need to know, not managed entirely alone.

If you would like to speak with me about what you are experiencing — the relationship dynamics, the symptoms, the barriers you are facing in getting support — you can reach me through a Smart Consultation. I will give you a careful, non-judgmental response and a clear sense of what I think would help.