That would explain some of it.

It was a very long weekend: no more Cuervo Gimlets - from now on, Patrón Silver only.

Experts say that the type of alcohol you drink does make a difference, but for various reasons. Among the most important is the amount of congeners (pronounced CON-juh-nurz) — complex organic molecules — in a particular drink. Impurities in poorly refined spirits like cheap vodka can also play a role, but congeners, which are common in darker liquors, seem to have the greatest effect.