The vodka is always blended with water. By combining vodka with additional water, you are just increasing the percentage of water and decreasing the percentage of alcohol. So, yeah, vodka combined with water may still get you really drunk if you drink enough of it. The most common mixers used in bars are soda, juice, and water. All of these contain carbohydrates that our bodies use for energy. The more of them that you eat or drink, the faster your body will absorb any remaining alcohol in the beverage. Your body can only process a certain amount of alcohol at once, so when you drink something containing alcohol, you are also drinking something that contains sugars. These sugars enter your body and give you energy - but they also cause your blood sugar to rise. As well as making you feel drunk, this increased blood sugar level can make you tired and lead to other problems such as weight gain. It is important to remember that just because something contains alcohol does not mean that it will affect you negatively. For example, eggs have alcohol in them, but that doesn't mean that eating lots of them will make you drunk. They contain proteins that your body uses for growth and repair. If you were to eat just one egg, it would take about two weeks for all the protein to be broken down. During this time you would need to continue eating food with proteins in it to keep yourself healthy.