For many years it was believed by medical science that neuroplasticity, the phenomenon in which the human brain rapidly and readily creates neuronal interconnections tapered off as people got older. Children are renowned for learning anything and everything that catches their fancy (not always what we'd wish they'd learn) but the learning process seems to slow down the older they get. As adults, it's much harder to learn complex new skills from scratch. In recent years, a number of compounds have been developed that seem to kickstart neuroplasticity again, but they're mostly used for treating Alzheimer's Disease and not so …