Loud noise refers to sounds that are intense and can be disruptive or uncomfortable to hear. It is often measured in decibels (dB), with sounds above 85 dB considered potentially harmful to hearing. Common sources of loud noise include traffic, construction sites, and concerts. Exposure to loud noise can lead to various effects, such as stress, difficulty concentrating, and hearing loss over time. Many people use earplugs or noise-canceling headphones to protect themselves from excessive noise in their environment. Understanding loud noise is important for maintaining a healthy auditory experience.