When you first arrive in a new country, it can be easy to concentrate on your studies and forget about taking care of your health. But any health problems can be made worse by the effects of adjusting to a different climate, unfamiliar food and the emotional strains of being away from home.
The National Health Service is the United Kingdoms health service which provides treatement for UK residents through a wide range of health care services. Some services are free, and some you will have to pay for. If your course of study is for six months or more you will qualify for NHS treatment from the beginning of your stay on the same basis as anyone who is ordinarily a resident in the UK.
The link below will give you more details:
www.ukcosa.org.uk/images/health.pdf