Typical symptoms of dehydration include thirst, dry mouth, and decreased urine output. More severe cases can present with symptoms such as dizziness, headaches, dry skin, and fatigue. In extreme instances, dehydration may lead to confusion and rapid heartbeat. It is crucial to be aware of these signals, particularly during periods of intense exercise or in hot climates, as dehydration can impair both physical and cognitive performance. Adequate hydration plays a key role in maintaining optimal body function and preventing related health complications.