Articles Tagged ‘epidemiology’

The Majority of Cancers Are Linked to the Environment

Go to Animation - Still image from BenchMarks Animation - Jet Stream Dispersing I-131 across the U.S.

One of the hopeful messages from cancer research is that most of the cases of cancer are linked to environmental causes and, in principle, can be prevented. Together, the National Cancer Institute (NCI) and the National Institute of Environmental Health Sciences have recently published a new booklet titled “Cancer and the Environment,” which focuses on the agents in the environment that cause cancer and what we can do to lower our cancer risk. Environmental causes include both lifestyle factors such as smoking and diet, as well as exposure to agents in the air and water. The following interview with Aaron Blair, Ph.D., the chief of the Occupational Epidemiology Branch in NCI’s Division of Cancer Epidemiology and Genetics, will address the contribution of various agents to our overall cancer burden.

Epidemiology in a Nutshell

Cancer in Populations

Epidemiology studies attempt to uncover the patterns and causes of disease in groups of people.

Epidemiologists gather data from a wide variety of sources in order to develop a comprehensive picture of health problems around the world.

An NCI Perspective on Epidemiology

Cancer in Populations

Does smoking cause lung cancer? Do high-fat diets increase the risk of breast cancer? Is arsenic in water linked to cancer? These are the kinds of questions that epidemiologists try to answer. In this month’s Benchmarks, we talked to one of NCI’s leading epidemiologists, Dr. Robert N. Hoover, about epidemiology in general, and about the research in NCI’s Division of Cancer Epidemiology and Genetics (DCEG).