One Glass of Water First Thing in the Morning—What Happens Inside Your Body?

• 1–2 glasses of water
• About 250–500 mL total

Room-temperature or warm water is often easier on the stomach than ice-cold water first thing in the morning.

A Few Things to Keep in Mind

Although drinking water in the morning is generally safe for most people, it’s important not to overdo it. Drinking excessive amounts too quickly can be uncomfortable and, in rare cases, dangerous.

People with certain medical conditions — including kidney disease or heart problems — should follow their doctor’s advice regarding fluid intake.

Final Thoughts

Drinking water on an empty stomach immediately after waking up is one of the easiest wellness habits you can adopt. It’s simple, affordable, and may help support hydration, digestion, energy, and overall health.

While it’s not a cure-all, making water your first drink of the day could be a small change that helps your body feel better over time.