What does a Hertz measure?

Hertz is the unit of measurement for frequency, which refers to the number of cycles of a periodic event that occur in one second. When discussing frequency in terms of waves, such as sound waves or electromagnetic waves, one Hertz indicates that one complete cycle occurs per second. This measurement is critical in various fields, including physics, engineering, and beauty therapy, particularly when it comes to understanding devices that utilize sound waves, such as ultrasonic treatments.

Understanding frequency is essential for beauty therapists using various technologies for treatments, as the effectiveness and safety of these methods can depend on operating within the appropriate frequency range.