Common signs of dehydration include increased thirst, dry mouth, fatigue, dark yellow urine, and dizziness. Other symptoms can be headaches, dry skin, and confusion. In more severe cases, dehydration can lead to serious complications like kidney damage. It’s essential to recognize these signs early and take preventive measures, such as increasing fluid intake, particularly during exercise or in hot climates. Maintaining hydration is vital for overall health and optimal functioning of the body, especially in physically demanding situations.