Have you ever met really anxious people? Some of the items listed here, such as L-Theanine (tea extract) are weak relaxants that help with reducing anxiety and related issues. Thus help anxious people to get work done. There are a lot of plant based nootropics that help with overall brain function and mood and focus. While they are still considered drugs, together with exercise and good night sleep, nootropics help you with getting that focus and calm mind.