Scientists have discovered the reasons why you can not sleep with your smartphone

• Scientists found out, you can not sleep for some reason your smartphone

The California Department of Health has issued a warning, according to which smartphones should be kept at least at arm's length when you go to bed, to reduce the radiation dose. The announcement was made amid growing evidence that the use of a smartphone can affect the appearance of cancer, problems with concentration, mental health and the reproductive system.

Mobile phones transmit information using low-frequency radio signals, which can be dangerous to humans, especially when transferring or downloading files.

While the study can not prove a clear link between the disease and smartphones, but enough testing has been conducted to warn of the dangers of their members, and especially children.

Experts recommend to keep the smartphones, at least at a distance of one or two meters away from the bed.

In fact, the producers themselves gadgets agree. For example, Apple has included in the notification settings "detection of radio frequencies." The notice says that the iPhone has been tested radiation at a distance of 5 mm (thickness of a ballpoint pen) from the body, which corresponds to US safety standards. Apple also advises how to reduce radiation - use a speakerphone or headset.

"Most people are not even aware that there is a clear warning to keep the phone away from your body, - says Dr. Davis Foundation human health and the environment. - And it's disturbing, because parents do not know about it, calmly leave their children next to the gadgets. "

Guide California Department of Health points out that the low-frequency signals is much easier to penetrate the brains of children than adults, which could lead to damage or-lasting effects in brain development.

Last week in the French primary and secondary schools have banned the use of smartphones.