Human growth hormone, what's the truth behind hgh? Are there really injections for that, if so what are results /consequences of the injections?

GH deficiency. Hgh is available, but should only be used for gh deficiency, and only in youth. Trials with gh in adults have not proven any real functional benefit. If you are a 19 yo woman, you should be making lots of gh still, and should not need any more. Too much gh can stimulate "growth" where you don't want it, eg tumors.