Changes with Age. In most cases, a person's normal respiratory rate will change with age; younger adults, children, and babies will typically have faster respiratory rates, because as people age, their breathing usually slows down.
Modic changes are pathological changes in the bones of the spine, the vertebrae. These changes are situated in both the body of the vertebrae and in the end plate of the neighboring disc.
Modality and Symmetry. Any value of a data variable or random variable at which the frequency curve or probability curve reaches a peak is called a mode. Most distributions in practice have one peak and are described as unimodal. A distribution with two peaks is called bimodal.