Geomagnetism

Geomagnetism refers to the magnetic field surrounding the Earth, also known as the Earth’s magnetic field. It is generated by natural magnetic phenomena within the Earth, which can be perceived as a magnetic dipole, with one pole located near the geographic North Pole and the other near the geographic South Pole. The geomagnetic field is primarily produced by the electric currents generated by the flow of electrons in the Earth’s outer core, influenced by the planet’s rotation. The strength of the geomagnetic field is weakest near the equator and strongest near the poles, with its direction being horizontal at the equator and vertical near the poles. Furthermore, the geomagnetic field is subject to external disturbances, leading to temporal variations. The geomagnetic field significantly impacts human life in various ways. It can enhance microcirculation, stabilize blood pressure, assist in anti-inflammatory processes, promote endocrine function, and regulate physiological mechanisms. However, drastic fluctuations in geomagnetism may adversely affect the nervous system, cardiovascular system, immune system, and sleep quality. Additionally, the geomagnetic field plays a protective role by shielding the Earth from cosmic rays.