However, there is a group of people who not only can not enjoy surfing the Internet at any time, but also are afraid of wireless networks because they will suffer from tinnitus, headache, burning eyes, nausea and vomiting once they are exposed to the electromagnetic waves of the wireless network. The above symptoms are collectively referred to as electromagnetic wave allergy, which specifically refers to the neurotic allergy caused by long-term exposure to an electromagnetic environment. However, scientific experiments have so far been unable to prove that there is a necessary connection between exposure to electromagnetic waves and the above abnormal physical reactions.