Noise exposure refers to the presence of loud sounds in the environment that can affect hearing and overall health. Common sources of noise include traffic, construction sites, and loud music. Prolonged exposure to high noise levels can lead to hearing loss, stress, and sleep disturbances. To measure noise exposure, decibels (dB) are used, with sounds above 85 dB considered harmful over time. Individuals working in noisy environments, such as factories or airports, are often required to use protective equipment like earplugs to minimize their risk of hearing damage.