Hormones
Growth hormones are special hormones produced by special cells in the endocrine glands, specifically the thyroid gland.
These hormones are produced in small amounts and are sent into the bloodstream and target directly or indirectly specific organs and tissues to help regulate growth and development.
Sleep
Proper sleep is vital. The first 2 hours of sleep are when the most growth hormone spills into your system. Not getting enough sleep can lower the amount of growth hormone your body produces.
Get at least 7 or 8 hours of sleep. Eating big meals with foods that have a high glycemic index will force your body to produce a large amount of insulin to help in digestion. This will effectively block out the flow of growth hormone into your blood stream.
That is why a diet high in sugars and carbohydrates is bad for growing taller. That is a big reason why Asians are generally short. They eat way too many carbohydrates.
You will want to avoid eating any food or drinking any soft drinks in the 2 hours before bed. This is critical because you don‘t want any insulin surges before and during your sleep.
Remember, the first 2 hours of sleep are very important because that is the time when your body produces and releases the most growth hormone.
Consider drinking a glass of milk with a glutamine supplement 2 hours before you expect to go to bed.