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.
The term mod is derived from the act of modifying a game. To mod a game is to create custom levels, objects, characters, or even unique or stand-alone game from an existing game engine. Many games come with an editor that allow for easier modding. A person who mods a game is called a modder.