Because cortisol plays many roles, its excessive production triggers a vast array of symptoms that often may appear vague and can be easily confused with signs of normal aging in senior dogs. (notinthedoghouse.com)
Just as with humans, normal aging processes can bring physical changes that in turn lead to behaviour changes. (patriciamcconnell.com)
In normal aging, you are likely to recall the word after a cue is provided. (verywell.com)