the day.
Total fluid requirements vary substantially between individuals, and fluids also come from foods and beverages other than plain water.
Drinking excessive amounts isn’t healthier. In rare cases, consuming too much water can lower blood sodium to dangerous levels, a condition called hyponatremia.
The Bottom Line
Drinking water after waking up is a healthy and inexpensive habit.
It can help you rehydrate after sleep, support digestion and bowel regularity, maintain normal kidney and body functions, and establish a healthy hydration routine.
But you don’t need to drink water on
