When the first cell phones were made in 1984, there were many health risks. Cell phones emit radiation that could be harmful. No testing had been done prior to releasing these phones to the public. The radiation could possibly lead to brain cancer with long-term use.

Cellular phones give off an electromagnetic energy which is a type of non-ionizing radiation. This is similar to the radiation naturally found in thunderstorms. The RF electromagnetic energy that cellular phones create can penetrate through a body. The main factors for the depth of penetration and how much is absorbed come from how close the phone is held and how strong its signal is.


      Hands free cell phone    
 

It is possible that cell phones can cause serious health issues such as cancer, epileptic seizures or sleep disorders, changes in brain activity, and reaction time, but nothing has been definitely proven.

Using a cell phone while driving can increase the risks for accidents. They may interfere with medical devices. These include pacemakers, defibrillators, and hearing aids. Cell phones also interfere with aircraft electronics.

SAR, (specific absorption rate), has a limit of 1.6 watts per kilogram to decrease the health risks.
Hands free phones and devices can be used while driving to prevent traffic accidents, although it is best to refrain from using phones completely while driving.