How does noise pollution primarily impact individuals' health?

Noise pollution primarily impacts individuals' health by leading to increased stress levels. Continuous exposure to high levels of noise can trigger stress responses in the body, resulting in both psychological and physiological effects. For instance, persistent noise can cause anxiety and irritability, and can also negatively affect sleep quality, leading to fatigue and reduced cognitive functioning.

Moreover, chronic stress associated with noise pollution has been linked to various health problems such as cardiovascular issues, hypertension, and weakened immune response. This is because prolonged exposure to stressors can result in elevated levels of stress hormones like cortisol, which can have detrimental effects on overall health and well-being.

In contrast, the other options do not accurately capture the effects of noise pollution. Improved concentration, increased productivity, and enhanced social interactions are not typical outcomes associated with noisy environments; rather, such conditions tend to distract and detract from performance and social engagement.