Addiction medicine deals with patients suffering from a wide variety of addiction problems. It aims to free people from their addictions while providing support, counseling, and mental health services. Medical professionals who work in addiction medicine can help patients work through the detoxification process as well as provide harm reduction tactics and rehabilitation services. They may also treat conditions like hepatitis and HIV, which are related to addiction issues. This type of medicine is often associated with public health.

Geriatric medicine focuses on the health of elderly people. As they age, many people experience age-related health problems, such as fragile bones, skin problems, and issues with eyesight and hearing. Doctors who specialize in geriatric medicine can provide services and solutions for many of these problems. Not only do these physicians treat potential problems, but they also work with patients as they age to help them maintain health, mobility, and quality of life.