The image shows vulnerable neurons in a fruit fly's brain. Neuronal Circuits and Metabolism, Technical University of Munich. (Image: Laura Loschek / TUM) Image is illustrating the press release: "A neuron can cause a domino effect"; 01.03.18; https://www.tum.de/nc/en/about-tum/news/press-releases/detail/article/34509/. Free for use in reporting on TU München with the copyright noted.