At a TEDx speech in November 2018, Thunberg stated that she first heard about climate change at the age of eight, but could not understand why so little was being done about it. At age 11, she had depression and stopped talking. Later, she was diagnosed with Asperger syndrome, obsessive–compulsive disorder (OCD), and selective mutism. She added that selective mutism means that she was speaking only when she needed to and that "now is one of those moments". She further added that the "spectrum" was an advantage "as almost everything is black or white". She said: "I feel like I am dying inside if I don't protest". She hands out leaflets outside the Swedish parliament with the phrase "I am doing this because you adults are shitting on my future."