The harm of electromagnetic fields to human body

Workers in many factories need to be in electromagnetic fields for a long time when they are working, which is actually very harmful to human health. If you must be in this environment, you should take precautions, wear protective clothing, try your best to protect your own safety, and leave the electromagnetic field environment as soon as possible after completing your work. So, what are the hazards of electromagnetic fields to the human body?

What factors affect the harm of electromagnetic fields to humans?

1.Electromagnetic field strength. The higher the intensity of the electromagnetic field, the more energy the human body absorbs and the more serious the damage.

2. Electromagnetic wave waveform. When other parameters are the same, pulse waves are more harmful than continuous waves.

3. Electromagnetic wave exposure time. The longer the continuous exposure time of electromagnetic waves, the shorter the intermittent time during the exposure process, and the longer the cumulative exposure time, the more serious the harm to the human body.

4. The area and part of the human body exposed. The larger the area of ​​the human body that is irradiated, the more energy is absorbed and the more serious the damage is. The parts of the human body with fewer blood vessels have poor heat transfer capabilities, and the heat converted from the absorbed energy is easily accumulated, causing greater damage.

5. Environmental conditions. Too high temperature and humidity are not conducive to the body's heat dissipation and will aggravate human damage.

6. Differences in personnel. Women are heavier than men, and children are heavier than adults.

High magnetic fields are extremely harmful to the human body, and in severe cases can directly threaten human life. Therefore, we should actively avoid these high magnetic fields in normal times. This is the only way to keep the body in a healthier state. In addition, we should develop good living habits and eating habits in normal times to actively increase our body's resistance.

What are the hazards of high magnetic fields to the human body?

The harm of electromagnetic fields to the human body is mainly caused by the heat energy converted from electromagnetic energy. Due to the influence of heat, the functions of some organs of the human body are damaged to varying degrees. Secondly, due to different frequencies, the degree of injury is also different.

1. Under a certain degree of medium and short wave electromagnetic field radiation, the damage to the human body is mainly the dysfunction of the central nervous system. It manifests as neurasthenia: such as dizziness, headache, fatigue, memory loss, poor sleep and other symptoms; it also manifests as autonomic nervous system dysfunction: such as sweating, loss of appetite, palpitations and other symptoms. In addition, some people also have symptoms such as hair loss, slight tremors in the fingers when stretching their arms, abnormal skin scratches, and decreased vision.

2. Under the radiation of ultrashort wave and microwave electromagnetic fields, in addition to the aggravation of neurasthenia, the autonomic nervous function will be seriously disturbed. The main manifestations are obvious cardiovascular system symptoms, such as bradycardia or tachycardia, low or high blood pressure, palpitations, a feeling of pressure and pain in the heart area, etc.

3. Ultra-high voltage and high-intensity power-frequency electromagnetic fields above 330kV are harmful to human health and can cause symptoms such as fatigue, weakness, headache, poor sleep, and myocardial pain.

The effect of electromagnetic fields on the human body is mainly functional changes, which are recoverable and usually disappear within a few weeks of discontinuation of contact. However, some people who are exposed to high-intensity and long-term effects find it difficult to recover.

In addition, high-frequency electromagnetic fields may interfere with the normal operation of electronic equipment such as communications and measurements, and even cause accidents. It may also generate high-frequency sparks due to induction, causing fire or explosion.