The notion of a polaron. originally introduced in the context of electrons in ionic lattices. helps us to understand how a quantum impurity behaves when being immersed in and interacting with a many-body background. We discuss the impact of the impurities on the medium particles by considering feedback effects from polarons that can be realized in ultracold quantum gas experiments. https://cosmeticssquadets.shop/product-category/mens-grooming-kit/