Why does alcohol impair coordination? All because it destroys brain cells - hundreds of neurons per minute! And anyway, that's it... Obviously, just kidding - it can only accumulate with the effects of frequent alcohol consumption. The reason is that, when alcohol enters the bloodstream, it destroys the walls of the red blood cells. They become loose, sticky, and if there are a lot of such red blood cells, it contributes to their adhesion and clot formation. This leads to the death of brain cells. As these clots clog the small vessels of the brain☝🏻 The wobbly gait in non-alcoholics is just a consequence of the effect of ethanol on the cerebellum. It blocks the connection between its neurons and the brain. And it is the cerebellum that is responsible for movement coordination - that's why drunks are so clumsy.