Small Drinks Through the Day Work Best
Most people feel better when they drink regularly—not when they gulp a large amount once. If you wait until you are very thirsty, you may already need a drink. Link water to habits you already have: breakfast, morning break, lunch, afternoon, and dinner.
Plain water is great, but soup, milk, herbal tea, and water-rich foods (cucumber, oranges, lettuce) also count. Coffee and tea count for most people in normal amounts. If you drink a lot of coffee and feel dry or headachy later, add a glass of water between cups.