There has been an ongoing debate on whether cell phones can be dangerous for users, but the California Department of Public Health (CDPH) has taken a step forward with new guidelines that aim to decrease people's exposure to devices. "Although the science is still evolving, there are concerns among some public health professionals and members of the public regarding long-term, high use exposure to the energy emitted by cell phones," CDPH Director Dr. Karen Smith said. "We know that simple steps, such as not keeping your phone in your pocket and moving it away from your bed at night, can help reduce exposure for both children and adults." The CDHP said the average age a child first gets his or her cell phone has dropped down to as young as age 10. "Children's brains develop through the teenage years and may be more affected by cell phone use," said Smith. "Parents should consider reducing the time their children use cell phones and encourage them to turn the devices off at night." Officials released the following tips on how to reduce exposure to radiation from mobile phones: Keeping the phone away from the body; Reducing cell phone use when the signal is weak; Reducing the use of cell phones to stream audio or video, or to download or upload large files; Keeping the phone away from the bed at night; Removing headsets when not on a call; Avoiding products that claim to block radio frequency energy. These products may actually increase your exposure.