As a matter of fact the role of human growth hormone in any kid would need to first establish the deficiency of it. Otherwise the role of it would be highly selective. I would suggest first a thorough evaluation by an endocrinologist and blood work. That will give an insight for the role of HGH, if it is there or not. The hormonal growth retardation can be related to the emotional maturity. The children have different growth pattern. Some children may show late or delayed physical development. Most of the time physical evaluation by a specialist (pediatrician and endocrinologist) and blood work with the observation and monitoring will give the ideal therapeutic protocol.
Please feel free for your follow up questions and if your want to further discuss it.
Yes, hormones do affect the physical as well as emotional built up of any individual, so both are related.
You are welcome.