Staying hydrated is crucial for maintaining good health and overall well-being. Our bodies are composed of around 60% water, and this essential fluid plays a vital role in various bodily functions. When we don't consume enough water, we risk becoming dehydrated, which can lead to a range of health issues. Dehydration can cause fatigue, headaches, dizziness, and even impair cognitive function. To stay properly hydrated, it's recommended to drink at least eight glasses of water a day, though individual needs can vary.