Explore a scientific lecture from the second Scientific workshop for students on "Computational Physics of DNA" that examines how alkali metal ions influence the vibrational dynamics of DNA's ion-hydration shell. Delivered at the Bogolyubov Institute for Theoretical Physics of the NAS of Ukraine, delve into the complex interactions between DNA molecules and their surrounding ionic environment. Learn about the specific effects different alkali metals have on the hydration dynamics of DNA, contributing to our understanding of fundamental biological processes at the molecular level.