Just like Paltrow didn't invent yoga , she also didn't invent psychedelic drugs. Since the 1960s, people have contested their use for treating depression and anxiety. But promising new research suggests that using psychedelic drugs such as LSD, MDMA, psilocybin (aka "mushrooms"), and ayahuasca, in conjunction with psychotherapy can improve symptoms of anxiety, depression, and post-traumatic stress disorder, according to the Multidisciplinary Association for Psychedelic Studies (MAPS) . This is still an emerging field, but is gaining mainstream attention from people looking for an alternative to antidepressants. Just yesterday, the Food and Drug Administration approved a nasal spray that contains ketamine , an anesthetic drug that goes by the name "Special K," and can be used to treat depression.