High levels of cellphone radiation linked to cancer in male rats

The study exposed 3,000 rats and mice to radio frequency radiation for nine hours daily over two years. Rats were exposed in the womb, while mice started at 5-6 weeks old. They lived in chambers with RF fields of 900 and 1,900 MHz. The study found that radiation exposure is linked to tumor development in the hearts, brains, and adrenal glands of male rats.

How long did the study expose the rodents to radiation?

• One year

• Eighteen months

• Up to two years

• Three years

What frequencies were used in the radio frequency fields to which the rodents were exposed?

• 500 and 1,000 megahertz

• 800 and 1,500 megahertz

• 900 and 1,900 megahertz

• 1,000 and 2,000 megahertz