Unless the battery of the phone is removed, it is radioactive, and it will be larger when charging, so it is not recommended to put the phone on the bed to charge, or put it under the pillow to sleep.
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What you can do is to try to avoid it, it is recommended to turn off the phone when charging, which is better for the phone and people, and try not to put the phone in the brain when charging the phone.
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Information is transmitted through electromagnetic waves, which are called cell phone radiation. Cell phone radiation is measured by SAR values. The marathon debate about whether cellphone radiation is harmful to the human body has never stopped. Some people believe that the harm of mobile phone radiation to human health is a serious social problem that exists objectively, and it will not disappear because of the deliberate concealment and avoidance of the mobile phone industry.