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.
Modifiers are, quite simply, any word or group of words that modifies (describes or elaborates upon) another element in a sentence. Modifiers can either be adjectives, which modify nouns (or sometimes pronouns), or adverbs, which modify pretty much everything else (usually verbs, adjectives, and other adverbs). Whether a modifier is an adjective or adverb depends on what it modifies and how it functions in a sentence.