Research suggests that psychedelic experience may hold the potential for making some patients healthier and some people happier. Since the 1950s, researchers have been studying the risks and benefits of psychedelics and non-pharmacological tools to change consciousness. And since the late 2000s, the academic world is in a renaissance of scientific and clinical projects in this field. Science-based psychedelic-assisted therapies may soon be established legally. This page intends to provide newcomers with an introduction to the basic concepts of psychedelic science and an understanding of on-going scientific efforts.