OK, I have to state immediately that I'm not here primarily for the muscle gains. I am on a constant quest of trying to increase my intelligence, and over the past months I've read several scientific articles that clearly concludes that IGF-1 has a positive effect on the brain. Researchers is getting more and more convinced that low insulin levels is a major factor in developing Alzheimer's and Parkinson's disease. Tests have been done on both rats and humans. They've seen extraordinary results. Test-subjects have experienced dramatic improvements in memory capacity, but also cognitive function in general. The researchers have also seen that IGF-1 actually stimulates NEUROGENESIS! The protein is small enough to pass the blood-brain-barrier. I've seen these results in several unrelated studies over the past couple of months. So, where on my body should I inject it to get the protein into my brain? Thanks for answers!