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.
A physical change alters the form of a substance, but does not change it to another substance. What is a Chemical Change? When a substance undergoes a chemical change, it is changed into a different substance with different properties. 5 Signs of a Chemical Change Color Change Precipitation Precipitation Precipitation â the solid that forms from a solution during a chemical reaction.