Sadly, children and teens are at greatest risk—both for parotid gland tumors and brain tumors—as their thinner skull bones allow for greater penetration of cell phone radiation. The radiation can enter all the way into their midbrain, where tumors are more deadly. In addition, children's cells reproduce more quickly, so they're more susceptible to aggressive cell growth. Children also face a far greater lifetime exposure. According to Professor Lennart Hardell of Sweden, those who begin using cell phones heavily as teenagers have 4 to 5 times more brain cancer as young adults!
The following image, used with permission from the book Public Health SOS: The Shadow Side of the Wireless Revolution, clearly shows the differences in depth of penetration between adults and young children.

Pregnant women would also be wise to avoid cell phones as much as possible. In 2008, researchers analyzed data from nearly 13,000 children and found that exposure to cell phones while in the womb, and also during childhood, were linked to behavioral difficulties.viii Using handsets just two or three times a day during pregnancy was enough to raise the risk of their babies developing hyperactivity and difficulties with conduct, emotions, and relationships by the time they reached school age—and the risk became even greater if the children also used the phones themselves before the age of seven.
Overall, the study revealed that mothers who used mobile phones were 54 percent more likely to have children with behavioral problems. Later on, when the children began using cell phones themselves, they were:
- 80 percent more likely to suffer from behavioral difficulties
- 25 percent more at risk from emotional problems
- 34 percent more likely to suffer from difficulties relating to their peers
- 35 percent more likely to be hyperactive
- 49 percent more prone to problems with conduct