|Dehydration is the loss of water and essential salts that your body needs in order to function properly. When more water and salts leave the body than the amount coming in, dehydration can quickly occur. Our bodies are largely made up of water with it comprising up to 75% of our body weight.
It is therefore no surprise that dehydration can be a serious condition, especially in infants, children and the elderly. Dehydration can be caused by a number of factors and conditions, although the most common causes of dehydration include not drinking enough water, strenuous physical activity, vomiting or diarrhea, and consumption of alcohol.
When dehydration occurs, it causes a number of unpleasant symptoms which vary depending on the severity. While thirst is one of the obvious first effects, it is not always an accurate gauge of the bodies need for water, especially in young children or the elderly.