Radiation Exposure and Cancer

Learn about the different types of radiation and how exposure might affect cancer risk.

X-rays, Gamma Rays, and Cancer Risk

When talking about radiation and cancer risk, it is often x-rays and gamma rays that people think about. Learn what we know about these types of high-energy radiation and how they affect cancer risk.


Radon is a colorless, odorless, radioactive gas. Long-term exposure to radon can lead to lung cancer. Find out more about radon and its effects here.

Second Cancers Caused by Cancer Treatment

Some cancer treatments such as chemotherapy and radiation therapy may increase a person's risk of developing a different type of cancer later in life. Here we discuss the risk of second cancers that may be linked to past cancer treatment.

Ultraviolet (UV) Radiation

Ultraviolet (UV) radiation comes from the sun and man-made sources like tanning beds. Learn more about UV and how to reduce your risk of skin cancer here.

Cellular Phones

Some concerns have been raised about the safety of cell phone use because they give off radiofrequency (RF) radiation. Learn what we know about cell phones and cancer risk here.

Cellular Phone Towers

Some people have expressed concern that living, working, or going to school near a cell phone tower might increase the risk of cancer or other health problems. Find out what we know about the effects of cell phone towers here.