How to Increase Height: Genetics or Environment? how to calculate potential height?

How is a person's height determined and what role do genetics and environment play in it?
What is the method for calculating a child's potential height based on their parents' heights?
At what age do girls and boys usually reach their adult height?
What is the prime growth window for boys and girls?
What are the key environmental factors that can influence height growth?
How does physical activity contribute to height growth?
What role does sleep play in height growth?
What supplements are beneficial for height growth?
How do Human Growth Hormone (HGH) supplements and testosterone injections affect height growth?
Important Highlights from Our Discussion:

About 80% of a person's height is genetically determined, while the remaining 20% is influenced by environmental factors.
A child's potential height can be estimated by taking the average of the parents' heights and adding 2.5 inches.
Girls typically reach their adult height between the ages of 14 and 16, while boys reach theirs between 16 and 18.
The prime window for growth is generally between 10-16 years for boys and 8-14 years for girls.
Key environmental factors influencing height include nutrition, physical activity, and sleep.
Regular physical activity, particularly types involving stretching and resistance, stimulate the production of growth hormone and improve bone health.
Growth hormone, which plays a crucial role in height growth, is mainly released during deep sleep.
Supplements beneficial for height growth include Vitamin D, Protein, Zinc, and L-Arginine.
HGH supplements and testosterone injections can influence height growth, but they are usually only recommended for specific medical conditions and not for healthy individuals.