I don't get the last one, so I'll give you the first 2.
COmmuicate:
1. Ask the problem: make sure to listen
2. Show you care about them: give them a reason to live
Offer Help:
1. Tell them that if they need anything, you will be there to help/
2. Get them a Psychiatrist, and tell them they will help
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Answer:
1 ans:- Nemours KidsHealth
It is instrumental in regulating mood, growth and development, metabolism, and ... This lets the hormones travel to cells in other parts of the body. ... that control the release of hormones secreted from the pituitary gland.