Shape states that overhydration with water is possible, but not drunk inebriation. It is possible to drink too much water, which leads to a condition called hyponatremia. MedicineNet.com says hyponatremia can occur when a person drinks too much water, which can drop the body’s sodium to a dangerously low level.
Overhydration can be just as dangerous as dehydration, according to Shape. Drinking extreme volumes of water to replace lost fluids during high-intensity workout or very strenuous exercise may deplete the body of sodium. MedlinePlus says this electrolyte helps control blood volume and pressure. The muscles and nerves also need sodium for proper functioning.