There’s also a practical side. Drinking water first thing can help you build a consistent habit, making it easier to reach your daily fluid needs without thinking about it later.
Still, timing isn’t everything. Research suggests that what matters most is total daily water intake, not the exact moment you drink it. (Healthline)
In the end, a morning glass of water isn’t a miracle fix—but it’s a simple, low-effort step toward better hydration. And sometimes, the smallest habits are the ones that quietly make the biggest difference over time.