The fluid is an important component, when your body needs to maintain a normal body fluid level.
Fluid can be in many forms such as water, fruit and vegetables. With the high temperature rate experienced in most part of Africa and Asia, there is need for high consumption of more fluid.

When there is high temperature, the body releases more water outside, the skin to make it cooler.
During summer or heat season, the body needs more to maintain a normal homeostatic level.
Fluid also helps keep the entire body system, alkaline and present for the formation of cancer cell.
http://healthful.com.ng/thirst-of-fluid/

it is an important component for the body