Google Glass ushers in a new trend in wireless devices. A wearable computer with head mounted display, Google Glass captures a lot of attention with its design, functions and life-style implication. Though it is not yet on sale, some people have raised concerns that Google Glass introduces new types of radiation exposure risks due to the way in which it is worn. This article explores the implications of on-body wireless devices on radiation exposure.
Like all wireless devices, Google Glass emits electromagnetic radiation, called non-ionizing radiation, in the radio-frequency (RF) range in operation. The prototype Google Glass has Wi-Fi and Bluetooth antennas but no cellular antenna. Although there is still no consensus on whether this type of radiation is harmful to human body, growing scientific evidence shows correlation between wireless radiation and adverse health effects, including but not limited to brain tumors, impaired brain function, sperm damage and behavioral problems in children. In May 2011, the World Health Organization (WHO) classified radio-frequency electromagnetic radiation as “possibly carcinogenic to humans” based on increased risk of brain tumors.