In recent years, there has been a growing interest in the study of hydrodynamic theories which include the effects of spin and quantum anomalies. These theories, known as spin and chiral hydrodynamics, provide a unique way to study how quantum mechanical effects manifest at the macroscopic level in various systems in high-energy nuclear physics, astrophysics, and condensed matter. In this talk, I will cover recent developments in relativistic spin hydrodynamics, focusing on a derivation based on quantum kinetic theory. I will also discuss some fundamental properties of chiral hydrodynamics that are essential for numerical simulations and, thus, for making theoretical predictions. Finally, I will comment on applications to the physics of the quark-gluon plasma.