What harm does the magnet do to the body?

There is no clear record that magnets are harmful to human body.

Magnetic materials have been widely used in all aspects of traditional industries, such as generators, transformers, motors, telephones, radios and televisions. Magnetic steel coil structure is used in many instruments.

Electromagnets are widely used in daily life. Electromagnet is an application of current magnetic effect (electromagnetism), which is closely related to life, such as electromagnetic relay, electromagnetic crane and maglev train.

Extended data magnets can be divided into "permanent magnets" and "non-permanent magnets".

Permanent magnets are widely used in dry electronics, electric power, machinery, transportation, medical care, daily necessities and other fields. Such as speakers and telephone handsets; Magnetic system of magnetoelectric instrument: magnetic poles in generators and permanent magnet motors.

Permanent magnet devices used in mechanical manufacturing (such as permanent magnet sucker of surface grinder, etc.). ), magnetic suspension system and magnetic bearing; Magnetic separation system, magnetic dressing, magnetized water purification system, magnetic system of magnetron and proton accelerator, etc.

Non-permanent magnets, such as electromagnets, are magnetic only under certain conditions.

The magnetism of matter is not only ubiquitous, but also varied, so it has been widely studied and applied. Objects and substances around them, substances in various stars and interstellar spaces, atoms, nuclei and elementary particles in the microscopic world, and substances in the macroscopic world are all magnetic in one way or another.

Baidu encyclopedia-magnet