According to a study conducted by Karla Kaun, Emily Petruccelli and a team at Brown University in the United States, published in the journal Neuron, a few glasses of alcohol in the evening changes the way our memories are formed on a molecular level. Drugs of abuse both hard and soft (opiates, alcohol etc.) often result in adverse effects that vary in intensity: nausea, vomiting, headaches, hangovers... Why is it that we only remember good feelings associated with these neurotoxins, and not the bad ones? Going to work on fruit flies which they trained to like alcohol, the researchers investigated the roles of different genes and proteins involved in addiction and reward systems. read more Disclaimer: Chances are that this post was requested by an advertiser.