The term "seat adjustment" refers to the process of changing or modifying the position, height and angle of a seat in order to make it more comfortable for the person sitting on it. This can be done by using various mechanisms such as levers, knobs, buttons or straps that are attached to the chair's base or frame. The purpose of making these adjustments is to ensure that the individual is able to sit comfortably and maintain proper posture while working at a desk, driving a car or performing other tasks that require sitting for extended periods of time. Seat adjustment can also help alleviate discomfort caused by poorly fitting chairs or those with improper ergonomics.