Although debate continues, independent studies with long-term follow-up strongly suggest an increased risk of brain tumors related to the use of cellular or cordless phones. Researcher .B. Dubey says, "We conclude that the current standard of exposure to microwave during mobile phone use is not safe for long-term exposure and needs to be revised." Some studies have reported that long-term wireless phone users have increased rates of brain tumors, while other studies have found no more