Flynn was already in a physical and mental decline by the time they had married.

And in their study of those 74 to 81, they said, "half showed no mental decline whatsoever over the next seven years."

What we have here is the mental decline of an old man.

It is the most common form of mental decline, or dementia, in older adults.

Treatment for these conditions may slow or reverse mental decline.

Alzheimer's disease is the most common cause of mental decline, or dementia.

This, combined with the loss of his wife, sent him into a mental decline.

This is followed by progressive mental decline and loss of physical skills.

After years of mental and physical decline, he died in 1976, at the age of 77.

Signs of his mental decline began to emerge at this time.