It appears that drinking enough fluids is not only important for peak athletic performance, but it just might help lift your spirits, as well. Research out of Tufts University has found that when people exert themselves, the loss of fluids adversely affects cognitive performance and mood. The findings, sponsored by the Agriculture Research Service and the United States Army, lend support to the importance of proper hydration not only during strenuous exercise, but while tackling the rigors of our daily lives, where taking the time to get enough fluids might not be at the top of our priority list.

In the study, published in Perceptual and Motor Skills, approximately 30 male and female college students with an average age of 20 years were asked to take part in physical exercise. They were divided into two groups: one group was given water throughout the activity, while the “dehydration group” was denied access to fluids. In order to determine fluid loss, the subjects were weighed before and after the experiment.

Included in the post-exercise assessment were cognitive tests to measure short term memory and moods. What the researchers observed was that in addition to confusion and fatigue, the dehydrated group was more prone to negative moods than the hydrated group. According to the authors of the study, the level of fluid loss (about 1% to 2%) experienced by the subjects might be similar to what most people experience in a regular day when they are not drinking enough water.

With this in mind, adequate hydration throughout the day might help to improve our state of mind, and by extension, our outlook. This could go a long way in making us feel better as well as make us happier and more productive. At the very least, we would be less thirsty.

Dehydration is a process whereby fluids in the body are lost at a faster rate than they are replaced. It is of particular concern during exercise and in hot weather. Though there are varying degrees of dehydration, in its most severe manifestations, it can be dangerous and could require medical attention. The best approach is to ensure adequate replacement of fluids.

In certain instances, especially where excessive sweating is concerned, water alone may not be enough. Salts, minerals, and electrolytes lost in our perspiration need to be replenished, as well, and drinking huge amounts of water might not only be inadequate, but could have serious health consequences.

If you have questions or concerns, speak with your primary care physician.