Although cordless and cellular phones have become mainstays of modern society, scientists know very little about how they affect the human body. Despite decades of use and an estimated population of more than 100 million users worldwide, a good many unknowns remain. Research is underway, but it is likely that conclusive findings will not emerge for many years to come.

Concerns about Cordless Phones

Cordless phones operate by taking vocal messages and translating them into sine waves that are transmitted via a phone's antenna. Messages are then communicated back and forth using radio waves that are comprised of electromagnetic radiation. As the phone's transmitter, the antenna is a source of small radiation emissions.

Although these are extremely low frequency emissions (and indeed, a small fraction of what is produced by the average microwave), scientists have expressed concern about their effects on the human body. The concern is two-fold. First, as cordless and cellular phones provide greater ease, people are likely to use them more often and thus, prolong their exposure to radiation. Second, because the phone antenna rests right near the head, it is emitting radiation in an extremely sensitive area.

Since radiation functions by heating human tissues and killing or damaging cells, extended use and close exposure are a cause for concern regardless of the level of emission. Increasingly, the FCC is encouraging more rigorous research into the health effects of cordless and cellular phone use. In the meantime, consumers are encouraged to consider devices such as radiation shields and hands-free devices that diminish exposure to radiation. Although it is unclear what risks are involved, this is one area in which it is better to be safe than sorry.