On the occasion of the celebration of the World Alzheimer Day, the Tunis Science City organized three lectures within this framework, on Friday, September 20^th, 2019. The first lecture was entitled: “Understanding Alzheimer Disease” and was given by Dr. SAMIA BEN SASSI, Associate Professor of neurology at the National Institute of Neurology MONGI BEN HAMIDA. The second one was entitled “Pharmacologic synthesis and evaluation of new molecules for Alzheimer Disease” and was given by Pr. FAKHER CHABCHOUB, professor at the Faculty of Science of Sfax, and the third one was entitled “Non-Drug measures therapeutic approaches during the treatment of Alzheimer disease” and was presented by Pr. LEILA ALOUANE, President of Alzheimer Association of Tunisia.