1. My grandfather is in his second childhood.

2. Grandpa seems to be in his second childhood.

3. Is this what they mean by second childhood?

4. My grandfather is nearly 90 and in his second childhood.

5. Little things calm, second childhood is like a deputy XiaoDaRen.

6. He's in his second childhood, playing with his grandson's toy trains.

7. He's a dear old chap, but over ninety and in his second childhood.

8. Her grandfather's in his second childhood and talks nonsense most of the time.

9. These days she was acting very stupidly, as if she were in her second childhood.

10. Synonyms for Caducity include senility, dotage, age, old age, second childhood, senescence, agedness, elderliness, oldness and declining years

11. Peter, a 55-year-old distribution engineer at the plant, says his wife believes he is going through a second childhood.