A psychiatrist is a trained medical doctor who specializes in the field of psychiatry, a branch of medicine devoted to the diagnosis, prevention, study and treatment of mental health challenges. They are required to examine you to determine whether any symptoms are as a result of physical challenges, a combination of physical and mental difficulties, or strictly mental difficulties. They are the only mental health professional allowed to prescribe medications in Nigeria. Some psychiatrists are also trained to offer therapy and counselling services. They can also offer practical advice about diet, sleep, and other ways you can help yourself get better.