Dehydration is a condition in which the body loses more fluid than it takes in. As a result, the body does not have enough fluids to carry out its regular functioning. If you do not replace these lost fluids, then your body will get dehydrated. Anybody can become dehydrated, and the condition can be quite dangerous for both adults and children. In the following article, we will discuss the different aspects of dehydration, to help you understand it better. Symptoms of dehydration The common symptoms which point to cases of dehydration may differ based on age. In infants or young children, symptoms such as dry mouth or tongue, are the earliest indicators of dehydration. Having no tears while crying is also one of the signs to watch out for. Sunken eyes and cheeks are other indicators of dehydration in infants. In adults, different symptoms may point toward dehydration, including extreme thirst and infrequent urination. Dark-colored urine, fatigue, and dizziness are some of the other symptoms to watch out for. Causes of dehydration In most cases, dehydration can occur for the simplest of reasons. To start with, you may not be drinking enough water because you may be busy or sick.