As a singer you need to ensure that you stay well hydrated. Many physicians and clinicians consider that consuming approximately 64 ounces of non-alcoholic fluids per day is necessary to maintain adequate hydration for the voice Research supports that suggestion that adequate hydration allows vocal cords to vibrate with less "push" from the lungs, especially at high pitches. In addition, well-hydrated vocal cords resist injury from voice use more than dry cords, and recover better from existing injury than dry cords. Increased systemic hydration also has the benefit of thinning thick secretions.