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.
By Anne Marie Helmenstine, Ph.D. Definition: A phase change is a change in the state of matter of a sample. A phase change is an example of a physical change. Also Known As: phase transition.Examples: An example of a phase change is water changing from a liquid to vapor. Another example of a phase change is melted wax cooling into solid wax. phase change is an example of a physical change. Also Known As: phase transition. Examples: An example of a phase change is water changing from a liquid to vapor. Another example of a phase change is melted wax cooling into solid wax.