A health psychologist is a psychologist who specializes in the relationship between mental and physical health. Rather than focusing primarily on mental health disorders, health psychologists study and treat the behavioral, emotional, and social factors that influence how people get sick, recover, and manage chronic conditions. Their work is built on a framework called the biopsychosocial model, which recognizes that health outcomes are shaped not just by biology but by psychological states and social circumstances working together.
What Health Psychologists Actually Do
Health psychologists work at the intersection of mind and body. They help people change health behaviors like sleep, eating, physical activity, and substance use. They support patients coping with chronic illness, from heart disease and cancer to chronic pain and diabetes. And they address the emotional fallout of serious diagnoses, including anxiety, depression, and fear of recurrence.
In clinical settings, health psychologists conduct behavioral assessments, design intervention plans, and use evidence-based therapies like cognitive behavioral therapy to improve both mental and physical outcomes. For example, a health psychologist might work with a cardiac patient to reduce stress and improve heart health, help someone with chronic pain identify and prioritize daily activities that matter to them, or coach a cancer patient through the emotional challenges of treatment. They also consult with other medical providers, training physiotherapists to recognize psychological risk factors in pain patients or advising cardiologists on how to handle anxiety in patients with implanted heart devices.
At the population level, some health psychologists focus on research and public health, studying what drives health behaviors and designing programs to prevent illness. This can include everything from obesity prevention to planning more walkable communities that encourage physical activity. Others shape health care policy.
How They Differ From Clinical Psychologists
The simplest distinction: clinical psychology centers on diagnosing and treating mental disorders, while health psychology examines the two-way relationship between mental and physical health. A clinical psychologist might treat someone’s depression as the primary concern. A health psychologist might treat depression in the context of how it’s worsening a patient’s heart disease or slowing recovery from surgery.
Training differs too. Clinical psychology PhD programs emphasize administering mental health assessments and treatments, with a required one-year predoctoral clinical internship. Health psychology PhD programs, like UCLA’s, train students as behavioral scientists whose research focuses on health rather than solely mental health. Health psychology students often work with clinical populations and develop interventions, but they do so within a research framework. Some health psychologists pursue additional clinical training, which allows them to provide direct patient care, while others focus entirely on research or policy.
Conditions and Populations They Work With
Health psychologists treat a wide range of conditions where behavior and psychology intersect with physical health. Common areas include:
- Chronic pain: helping patients manage pain through behavioral strategies rather than relying solely on medication
- Heart disease: reducing stress, addressing fear of exercise, and supporting lifestyle changes like weight management and alcohol reduction
- Cancer: supporting patients through diagnosis, treatment, and survivorship, including fear of recurrence
- Diabetes and obesity: building sustainable changes in eating and physical activity
- Sleep disorders: treating insomnia and disordered sleep without medication when possible
- Cardiac arrhythmias: addressing the anxiety and avoidance behaviors common in patients with conditions like atrial fibrillation, where 28 to 38% of patients experience anxiety or depressive symptoms
A core principle in this work is that psychological factors don’t just accompany physical illness. They actively influence its progression. Stress worsens cardiac outcomes. Fear of movement keeps pain patients sedentary. Untreated anxiety leads people to avoid medications or skip follow-up appointments. Health psychologists target these patterns directly.
Where They Work
Health psychologists practice in hospitals, rehabilitation centers, primary care clinics, university research labs, and public health organizations. In medical settings, they’re typically embedded within care teams rather than practicing in isolation. You might encounter one in a cardiology department, an oncology clinic, a pain management center, or a weight management program. Those with doctoral degrees often supervise research or clinical teams and can practice independently.
Some work in academic settings, conducting research on topics like how giving patients more choice in their care format improves outcomes, or what psychological interventions most effectively support long-term behavior change. Others work in corporate wellness, insurance, or government agencies focused on disease prevention.
Education and Training Requirements
Becoming a health psychologist requires a doctoral degree, either a PhD or a PsyD, which typically takes five to seven years beyond a bachelor’s degree. Graduate training includes coursework in health behavior, research methods, and psychophysiology, along with supervised clinical or research experience.
To practice independently and provide direct patient care, health psychologists must be licensed in their state. Licensure generally requires passing the Examination for Professional Practice in Psychology (EPPP), completing a set number of supervised hours, and meeting state-specific educational requirements. Board certification in health psychology through the American Board of Professional Psychology is available but not required. It signals advanced specialization.
Salary and Job Outlook
Health psychologists fall under the broader category of clinical and counseling psychologists in federal labor data. The median annual salary for this group was $96,100 as of May 2023, according to the Bureau of Labor Statistics. Earnings vary significantly by setting and experience. Those at the 25th percentile earned about $66,050, while those at the 75th percentile earned around $129,020. Psychologists in hospital systems or major medical centers generally earn more than those in academic or community health settings.
Demand for health psychologists has grown as health care systems increasingly recognize that managing chronic disease requires addressing behavior, not just prescribing medication. Integrated care models that embed psychologists into medical teams are becoming more common, particularly in primary care and specialty clinics treating conditions where lifestyle factors play a major role.