Your body has a lot of different ways of compromising with stress, secreting different hormones to regulate the body when under certain conditions. Do you ever wonder why bodybuilders drink so much water, or decide to sodium load before competitions? It is a natural way to make you body get rid of excess water.
Well now lets take a look at natural growth hormone (now days you can't say that in a gym without getting some weird response or look). Your body has it's own growth hormone gland or the anterior pituitary gland if you will, stimulating it will produce and increase;
Promotes muscle growth
Makes use of stored fat
Decreases your use for carbohydrates for energy.
List of rules to stimulate more growth hormone
Eat low glycemic carbohydrates before training for example pastas, oatmeal, etc.
Go to bed on an empty stomach (no heavy carbs). Carbohydrates produce insulin, which can help store fat. Your body will only produce one at a time.
Training in short, intense workouts 2-3 times a day.
Wear warm clothing.
Getting enough deep sleep. It is produced in the first hour or so.
Using certain aminos throughout the day. Ornithine, arginine.
Eating a balanced diet. Carbs/protein/fat.
Eating 5-7 times a day.
Using the sauna 20 minutes a day.
Training using powerful lifts for example squats, dead lifts and power cleans.
Avoid doing the same exercise every time you go into the gym. This produces more HGH response.