Introduction
cancer, ARHL, diabetes, cardiovascular disease, hearing impairments, Alzheimer's disease, hearing loss, age-related disorders, communication disability
CANCER, HEARING IMPAIRMENTS, ALZHEIMER'S DISEASE, HEARING LOSS, DISEASES
Extension of healthy life expectancy has become a key challenge with the aging of the population. Age is a risk factor for several diseases, such as diabetes, cardiovascular disease, cancer, and Alzheimer's disease [NAD + related-metabolites are derived from three main NADAge-related hearing loss (ARHL) is one of the most common age-related disorders in older adults. ARHL is underscored by hearing impairments and speech communication disability caused by physiological age-related changes in the organum auditus and central nervous system circuits related to the auditory system. The World Health Organization defines disabling hearing loss as hearing loss greater than decibels hearing level (dB HL) in both ears, and hearing loss of 35 dB HL or greater in the worse ear [Therefore, we aimed to investigate the correlation between NAD