Voice problems usually are associated with hoarseness (also known as roughness), instability, or problems with voice endurance. Everyone wants to keep there voice healthy but it is particularly important for peoples have occupation such as singers, doctors, teachers, lawyers, nurse, sales persons and public speakers. Voice problems arise from different variety of sources including infection, cancer or injury. Tips for Healthy Voice: 1. Drink plenty of water because nothing is better than water. Keeping your body well hydrated by drinking plenty of water each day (6-8 glasses) is essential to maintaining a healthy voice. Foods containing large amounts of water are excellent hydration-conscious snacks, including apples, pears, watermelon, grapes, plums, etc. 2. Stop smoking as smoking is irritating to throat and vocal tissues. Smoking also causes inflammation and polyps of the vocal cords that can make the voice very husky, hoarse, and weak. 3. Don’t abuse or misuse your voice. Avoid yelling or screaming, and try not to talk loudly in noisy areas. 4. When giving a speech or presentation, consider using a microphone to lessen the strain on your voice. 5. When you are sick, spare your voice. Don’t talk when you’re hoarse due to a cold or infection. Listen to what your voice is telling you. 6. Consider voice therapy. A speech-language pathologist who is experienced in treating voice problems can provide education on healthy use of the voice and instruction in proper voice techniques. 7. Include plenty of whole grains, fruits, and vegetables in your diet. These foods contain vitamins A, E, and C. They also help keep the mucus membranes that line the throat healthy. Source