In the fields of science, technology and communication, low frequency is often used to refer to some slow waves, such as AM broadcasting, long-wave and medium-wave broadcasting and so on. The frequency of these waves is relatively low, so it is called low frequency. In other fields, low frequency can also be used to indicate that some events or situations occur at a low frequency.

Low frequency has different applications in different fields. Here are some examples of low frequencies:

In music, low frequency refers to the bass in music, which can be played with a subwoofer or a woofer.

In nature, low-frequency sounds are also common, such as waves, thunder or the breathing of large animals.

In electronic products, such as smart watches or fitness bracelets, low-frequency vibration will remind users to make some kind of response, such as getting up or exercising.

Low-frequency sound or vibration may have some influence on human health. For example, prolonged exposure to low-frequency sounds may lead to hearing loss, headache, anxiety and other symptoms. In addition, low-frequency vibration may also produce discomfort, cold sweat, insomnia and other effects. However, the specific degree and reasons of these influences need to be further explored in scientific research.