>>70765
Hoax:
According to this “warning” email, using an optical mouse can have dangerous side effects and cause cancer due to the amount of radiation produced by the devices. The message claims that there have been thousands of cases of hand tissue damage attributed to optical mouse radiation.
However, the claims in the message are fundamentally flawed. Optical mice do not emit radiation that could cause cancer or damage tissue. An optical mouse has a tiny built-in camera that takes thousands of photographs per second. A red light emitting diode (LED) bounces light off the underlying surface to a sensor that analyzes the images and sends coordinates to the computer. The cursor is moved on the screen based on the coordinates received.
Thus, the core component of an optical mouse is a simple LED.