Which of the following statements about swimmers and non-swimmers is true?

When evaluating the statement that non-swimmers experience higher rates of gastrointestinal and respiratory symptoms, it's important to consider factors that could contribute to this. Non-swimmers may not be exposed to certain environmental conditions found in swimming pools, such as chlorine, or they may not participate in physical activities that promote overall health and respiratory function.

While swimmers are exposed to water environments, which may carry risks for respiratory issues due to factors like water quality and the presence of pathogens, they can also develop physical fitness and respiratory resilience through regular exercise and exposure to a variety of aquatic environments.

Studies often show that consistent physical activity can enhance immune function and reduce the incidence of certain ailments, which might provide swimmers with a lower prevalence of specific health issues compared to non-swimmers, if they are regularly engaging in exercise.

Thus, stating that non-swimmers experience higher rates of symptoms aligns with observations within the health and fitness community, where a lack of engagement in physical activity may correlate with increased health issues.