Text One

Phrases:
A. ________  the balance back to “yes”
B. help people  ________  from depression and stress disorder
C.  ________  they could

For decades, scientists have debated whether the birth of new cells was possible in an area of the brain that is responsible for learning, memory and mood regulation. A growing body of research  ________ , but then a Nature paper last year raised doubts. Now, a new study  ________ .
If the memory center of the human brain can grow new cells, it might  ________  , and offer new insights into memory and learning. If not, well then, it’s just one other way people are different from rats and birds.