If you have been trying to conceive or are going through fertility treatment, you have almost certainly been told to "just relax." It is one of the most well-meaning but frustrating pieces of advice in the fertility world — partly because relaxation is hard to achieve on command, and partly because the relationship between stress and fertility is far more complex than a simple cause-and-effect equation.
The truth is that stress is a legitimate concern during fertility treatment, but not in the way most people think. This article examines what the research actually says about stress, cortisol, and IVF outcomes — including where the evidence is strong, where it is contradictory, and what practical steps you can take to manage stress in a way that supports both your wellbeing and your treatment.
What Happens in Your Body When You Are Stressed
To understand how stress might affect fertility, it helps to understand the biology of the stress response.
When you perceive a threat — whether physical danger, financial pressure, relationship tension, or the anxiety of a medical procedure — your brain activates the hypothalamic-pituitary-adrenal (HPA) axis. This cascade triggers the release of cortisol, your body's primary stress hormone, along with adrenaline and noradrenaline.
In short bursts, this response is adaptive and protective. But when stress is chronic — when the HPA axis is activated repeatedly over weeks and months — it can begin to interfere with other hormonal systems, including the hypothalamic-pituitary-gonadal (HPG) axis, which governs reproductive function.
How Chronic Stress Can Affect Reproduction
The HPA axis and HPG axis share overlapping pathways in the brain. When the stress response is chronically activated, it can:
- Suppress GnRH (gonadotropin-releasing hormone), which in turn reduces the production of FSH and LH — the hormones that drive follicle development and ovulation.
- Alter progesterone levels, potentially affecting the uterine lining's receptivity to an embryo.
- Affect immune function, as cortisol is an immunosuppressant. The immune system plays a nuanced role in implantation, and immune dysregulation could theoretically affect this process.
- Impact egg quality through oxidative stress. Chronic elevation of stress hormones may increase oxidative damage to developing oocytes.
What the Research Actually Says
The Mixed Evidence on Cortisol and IVF
The relationship between cortisol and IVF outcomes has been studied extensively, and the results are, frankly, conflicting.
A systematic review published in Reproductive BioMedicine Online examined the effect of cortisol on IVF treatment outcomes and found contradictory results: three studies reported favorable IVF outcomes in the presence of higher cortisol levels, while five studies reported that lower cortisol positively influenced success. The reviewers noted significant methodological differences between studies, making direct comparisons difficult.
Another study found that physiological and psychological stress did not negatively affect IVF outcomes, and that high follicular cortisol concentrations might actually have positive effects on pregnancy rates. This counterintuitive finding may reflect the fact that cortisol has anti-inflammatory properties that could, in some contexts, support implantation.
Anxiety and IVF Outcomes
While the cortisol data is mixed, research on anxiety — a related but distinct concept from physiological stress — paints a somewhat clearer picture.
A 2024 review published in the journal International Journal of Molecular Medicine indicates that for patients undergoing IVF, higher anxiety is associated with lower clinical pregnancy and fertilization rates, decreased embryo quality, and fewer oocytes retrieved. The review suggests that anxiety may exert its effects through both the HPA axis and through behavioral changes, such as disrupted sleep, poor nutrition, and reduced adherence to treatment protocols.
A 2024 systematic review examining stress across each stage of IVF treatment concluded that most studies found a negative association between stress and IVF outcomes, with the egg retrieval phase being the most affected by both chronic and acute stress.
The Chicken-and-Egg Problem
One of the fundamental challenges in stress-fertility research is determining causality. Does stress cause poor IVF outcomes, or do poor IVF outcomes (and the anticipation thereof) cause stress? It is likely bidirectional, creating a difficult cycle to study and an even more difficult one to break.
What researchers do agree on is this: the IVF process itself is inherently stressful, and this stress is a valid concern that deserves attention — not because "just relaxing" will get you pregnant, but because chronic, unmanaged stress affects your quality of life, your relationships, your sleep, your eating habits, and your overall health in ways that may indirectly influence treatment outcomes.
Why "Just Relax" Is Unhelpful (and What to Say Instead)
Before discussing stress management strategies, it is worth addressing why the "just relax" advice is so counterproductive.
Telling someone undergoing IVF to relax implies that their stress is the problem — that if they could just calm down, everything would work out. This framing is harmful for several reasons:
- It places blame on the patient for a medical condition.
- It oversimplifies a complex biological process.
- It dismisses the legitimate, rational reasons for their anxiety (financial strain, physical discomfort, uncertainty about outcomes, grief over previous losses).
- Ironically, it creates more stress by adding guilt about being stressed.
- "I can see how stressful this is. How can I support you?"
- "You are handling this with incredible strength."
- "You do not have to feel positive all the time. I am here for all of it."
- "What would feel good for you right now?"
Evidence-Based Stress Management Strategies
While you cannot — and should not try to — eliminate all stress from your life during IVF, you can build a toolkit of strategies that help you manage it more effectively. The following approaches have research support for reducing stress, anxiety, and their physiological effects.
Mindfulness and Meditation
Mindfulness-based stress reduction (MBSR) has been extensively studied and consistently shown to reduce anxiety, improve mood, and lower cortisol levels. For fertility patients specifically, research has shown that women with infertility who participate in stress reduction programs experience higher pregnancy rates compared to those who do not.
You do not need to become a meditation expert. Even 10 minutes of daily guided meditation can make a measurable difference. Apps like Insight Timer, Calm, and Headspace offer guided sessions, including some designed specifically for fertility patients.
Cognitive Behavioral Therapy (CBT)
CBT is one of the most evidence-based psychological treatments for anxiety, and it can be particularly effective during IVF. A therapist trained in CBT can help you identify and challenge anxious thought patterns, develop coping strategies for the uncertainty of treatment, and build resilience for the emotional ups and downs ahead.
If you can find a therapist who specializes in reproductive mental health or infertility, even better. Organizations like RESOLVE (in the United States) and Fertility Network (in the UK) maintain directories of fertility-specialized mental health professionals.
Progressive Muscle Relaxation (PMR)
PMR involves systematically tensing and then releasing different muscle groups throughout your body. It is specifically designed to reduce physical tension — a common manifestation of chronic stress — and has been shown to lower cortisol levels and improve sleep quality.
A typical PMR session takes 15 to 20 minutes and can be done lying down before bed. Many free guided PMR recordings are available online.
Journaling
Writing about your thoughts and feelings has been shown to reduce psychological distress and improve emotional processing. During IVF, journaling can serve as a private, judgment-free space to express fears, frustrations, and hopes that you may not feel comfortable sharing with others.
Some specific journaling approaches that may help:
- Gratitude journaling: Writing three things you are grateful for each day can shift your focus from anxiety to appreciation, even on difficult days.
- Expressive writing: Spending 15 to 20 minutes writing freely about your deepest thoughts and feelings about your fertility experience.
- Worry time journaling: Designating a specific 15-minute window each day for writing down worries, then deliberately setting them aside until the next worry window.
Physical Activity
As discussed in our article on exercise during IVF, moderate physical activity — particularly walking, swimming, and gentle yoga — reduces cortisol, improves mood, and promotes better sleep. During IVF, movement should be gentle and adapted to your stage of treatment, but even a daily 20-minute walk can be a meaningful stress management tool.
Social Support
Isolation amplifies stress. Connecting with people who understand what you are going through — whether through in-person support groups, online communities, or individual friendships with people who have experienced fertility challenges — can provide comfort, perspective, and practical advice.
At the same time, it is okay to set boundaries with well-meaning people who increase your stress. You do not owe anyone information about your treatment or your timeline. Protecting your emotional energy is not selfish; it is necessary.
Nature Exposure
Spending time in natural environments has been shown to lower cortisol levels, reduce blood pressure, and improve mood. This does not require elaborate plans — even sitting in a park, walking through a garden, or spending time near water can activate the calming effects. Research on "forest bathing" (shinrin-yoku) consistently demonstrates stress-reduction benefits with as little as 20 minutes of nature exposure.
Acupuncture
Some studies suggest that acupuncture may reduce anxiety and stress during IVF, in addition to its potential effects on reproductive outcomes (explored in more detail in our separate article on acupuncture and IVF). While the evidence is still evolving, many patients find acupuncture sessions to be a deeply relaxing part of their treatment routine.
Managing Stress at Different Stages of IVF
Different phases of treatment tend to bring different stress profiles:
Pre-treatment: Anticipatory anxiety about the unknown. Strategies that help include education (understanding what to expect), preparation (gathering supplies, arranging logistics), and building your support system.
Stimulation: Physical discomfort combined with daily monitoring and uncertainty about ovarian response. Strategies include gentle movement, body-focused relaxation techniques, and maintaining non-treatment-related routines.
Egg retrieval: Acute procedural anxiety. Strategies include visualization, deep breathing, and clear communication with your medical team about your concerns.
Embryo development wait: Anxiety about fertilization reports and embryo updates. Strategies include limiting the frequency with which you check for updates, engaging in absorbing activities, and having a plan for processing good or disappointing news.
Two-week wait: The most universally described stressful phase. Strategies are discussed in detail in our article on the two-week wait.
Results day: Regardless of outcome, results day is intensely emotional. Having a plan for how you will receive the news, who you want with you, and what you need afterward can reduce the shock.
When Stress Becomes Something More
It is important to distinguish between normal situational stress and clinical anxiety or depression. If you are experiencing any of the following, please seek professional support:
- Persistent feelings of hopelessness or worthlessness
- Inability to function in daily life (work, relationships, self-care)
- Panic attacks
- Intrusive thoughts about self-harm
- Prolonged insomnia that does not respond to lifestyle changes
- Loss of interest in activities you normally enjoy
- Difficulty concentrating or making decisions
A Note on Medical Guidance
This article is for informational purposes only and is not a substitute for professional medical advice. The authors of this blog are not doctors or medical professionals. Always consult with your fertility specialist or healthcare provider before making any decisions about your treatment. Every person's fertility journey is unique, and your doctor can provide guidance tailored to your specific situation.
Conclusion
The relationship between stress and fertility is real, but it is not as simple as "stress prevents pregnancy." The evidence is complex and sometimes contradictory, and the most important takeaway is not that you need to achieve a state of perfect calm, but rather that chronic, unmanaged stress affects your overall health in ways that may indirectly influence your treatment experience and outcomes.
You cannot will yourself into relaxation, especially during one of the most emotionally demanding experiences of your life. What you can do is build sustainable habits and support structures that help you cope more effectively with the very real stresses of fertility treatment. Be compassionate with yourself. Seek help when you need it. And know that the fact that you are stressed does not mean you are doing anything wrong — it means you are going through something genuinely hard, and you are doing the best you can.
