Many people take part in prevention studies.
Men and women of all ages and backgrounds take part in
these studies. Usually:
- They are healthy people.
- They are people who want to lower their chances for
getting a certain cancer.
Each study has different rules about who can join.
For example:
- One study may have people of a certain age or sex.
- One study may have people with a certain family history.
There are prevention studies for men and women of all
ages and backgrounds. You may know someone--a friend,
relative, neighbor, or co-worker--in a study now.
![](https://webarchive.library.unt.edu/eot2008/20080917234535im_/http://www.cancer.gov/images/Documents/77c74af0-5263-48ef-86dd-acf991198393/CTES_PrevBrochEnglishAPP103.jpg)
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