Why drink lemon water? I think the better question is why NOT?? The health benefits of drinking a tall glass of warm or room temperature water with half of a fresh squeezed lemon are remarkable. TONIFYING- Most everyone has heard that lemons turn alkaline once in your system. They help the body lower it high acidity levels which cause headaches, fatigue, and decreased brain function... How many of is suffer from that... I know my brain could be functioning better!! REGULATION