The American Cancer Society will soon begin enrolling local participants in a nationwide studyon the causes of cancer.Stephanie Feger with the society’s Louisville branch says 300,000 people are being recruited across the U.S. and Puerto Rico."It is a long-term study, so for the next 20 to 30 years, these individuals will receive periodic surveys to fill out in hopes that we are able to better understand different factors that could cause or prevent cancer," she said.Local enrollment for the study is August 7 -11. Feger says at that time, participants will fill out an informational packet and have their blood pressure, heart rate and measurements recorded.The survey is open to individuals between the ages of 30 and 65 who have no personal history of cancer besides skin cancer