If you have to write a health research paper, you can write not only about some health problems that people may face. At least, if you do not have some specific interests or your tutor did not assign a certain topic for your health research paper.
 
As for me, it would be really interesting to investigate in your health research paper the way the healthcare system works. If you share this interest, you can write your health research paper on National Health Service in England.
 
Here you will get some hints on some issues that you can discuss in your health research paper.

• Your health research paper can begin with the general information on NHS in England. Tell a little bit about the history of NHS, its current structure and functioning.
• National Health Service provides most of the healthcare in England. Almost all services are free for any citizen of England. However, there are private health institutions that are paid mainly by private insurance. In your health research paper you can investigate the coexistence of the two sectors, study their efficiency, advantages and disadvantages.
• In your health research paper you may study the development of National Health Service in England under different governments. For instance, you can compare this system under the government of Thatcher and Blair. Each of these prime-ministers carried out some reforms and you can study the effects of these reforms.

• You definitely should study the criticism of National Health Service in your health research paper. For example, some people claim that their health system is politicized and has weak tax policy, since the tax payers have to pay both for private and public sectors.

So, you should take into account that it was an example topic for your health research paper. In your work you can study the healthcare system of any country that you like.