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This year, the money is going toward laryngology, or disorders of the ears and the voice box, and for equipment for testing head issues.

Vocal cord polyps are usually noncancerous growths, according to Albert L. Merati, chief of laryngology at the University of Washington School of Medicine.

The least treatable problems are neurological problems and vocal-cord scarring, said Dr. Lee Akst, director of laryngology in the Department of Otolaryngology at Johns Hopkins University School of Medicine in Baltimore.

“You can do short-term damage and long-term damage,” said Dr. Michael Pitman, a laryngology system leader for the Mount Sinai Health System in New York.

An article in the August Scientific American by M. Charles Liberman, a professor of otology and laryngology at Harvard Medical School and director of the Eaton-Peabody Laboratories at Massachusetts Eye and Ear, focuses on relatively recent discoveries that show the din of a concert or high-decibel machine noise is enough to cause some level of hearing damage.