Answer:
Health psychologist
Explanation:
A health psychologist focuses on how emotional, social emotional and mental factors affect the well-being of a person. They work persons trying to cope with mental of physical illnesses, by managing their pain or stress.
Health psychologists work by changing behaviors of their patients to improve their over health or manage diseases or abnormal health conditions like, stress, cancer, weight gain, smoking etc.
They study individuals reactions to diagnosis and various factors that can affect the choices of treatment of the individual.