biology of mental health

Read the article first then Anwser the following questions.
Please use 5 references for each question.
Use APA 8th Edition referencing
Each question is 500 / 550 words.

Critical Analysis Questions
1. How do newly born neurons contribute to brain functions and why does continuous renewal throughout life hint at a functional role for these neurons?

2. What are the implications of this type of research for the field and beyond?