Which of the following is NOT a potential effect of high noise levels in the workplace?

High noise levels in the workplace can lead to a variety of negative effects on both physical and mental health. Tinnitus, which is a ringing or buzzing in the ears, is a well-documented consequence of prolonged exposure to loud sounds. Elevated blood pressure can also be related to high noise levels, as stress and annoyance caused by constant loud noise can trigger physiological responses that elevate blood pressure. Additionally, exposure to loud environments can contribute to feelings of aggression, as loud noise may increase stress levels and irritability in individuals.

In contrast, improved communication is not a potential effect of high noise levels. In fact, elevated noise levels typically hinder effective communication by making it difficult for employees to hear one another, concentrate, and convey important information clearly. Therefore, while the other options represent real potential effects of high noise in the workplace, improved communication stands out as the only option that does not align with the negative consequences of increased noise exposure.