When the human body is exposed to electromagnetic radiation, it will cause dysfunction of the central nervous system and mental system, mainly manifested as dizziness, fatigue, memory loss, loss of appetite, insomnia, forgetfulness and other sub-health symptoms. When using the hair dryer, the radiation source-the motor at the back end of the hair dryer is very close to the head, which is easy to cause dizziness and fatigue due to electromagnetic radiation. Therefore, when using the hair dryer, we should keep the correct methods, such as turning on and off the hair dryer as far away from the head as possible; When in use, it is best to keep the hair dryer vertical to the head; Don't use it continuously for a long time. It's better to use it intermittently. In addition to hair dryers, the radiation of other household appliances should not be underestimated. For example, when operating a computer, it is at least 30 cm away from the display screen, and the electromagnetic radiation is the largest at the moment of booting, so it should be avoided; When watching TV, it is best to stay away from the TV for more than 3 meters, and stay away from the TV immediately after turning it off; When using the microwave oven, keep a distance of at least 0.5m from the oven, don't look at the oven door, and don't stand in front of the oven for a long time. After the food is taken out of the oven, it's best to leave it for a few minutes before eating. Electric blanket is the most harmful to pregnant women, children and the elderly, so it should be used with caution, because the electric blanket itself is equivalent to an electromagnetic field. Even if the power is turned off, radiation will still disturb the natural electric field in the body. It is generally believed that electromagnetic fields will interfere with the release and absorption of calcium by cells, leading to the generation of cancer cells. Low frequency radiation is an important cause of human cancer, reproductive diseases, genetic diseases, Alzheimer's disease and amnesia, and electromagnetic radiation is the most harmful to children. Long-term exposure to electromagnetic radiation will increase children's chances of getting cancer. Electromagnetic waves will also affect the nervous system of the brain, slow down the speed of melatonin production in the pineal gland below the brain, and affect normal sleep. Electromagnetic waves can also damage cell membranes, interfere with hormones, affect children's development, women's menstrual disorders, and male sexual dysfunction. Electromagnetic waves also have obvious harm to the eyes, which will make the crystals of the eyes turbid and cause "electromagnetic wave cataract". In the daily diet, we should eat more foods rich in vitamin A, vitamin C and protein, such as carrots, tomatoes, kelp, lean meat, animal liver and so on, in order to strengthen the body's ability to resist electromagnetic radiation.

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