Studies suggest that swimmers overall have a higher illness rate than non-swimmers due to what factor?

The increased illness rates among swimmers compared to non-swimmers can be attributed to bathing water quality. This factor encompasses the presence of pathogens and pollutants in the water, which can lead to various health issues for individuals exposed during swimming. Studies indicate that swimming in contaminated waters—whether in pools, lakes, rivers, or oceans—can result in gastrointestinal infections, skin infections, and respiratory illnesses due to exposure to bacteria, viruses, and chemical disinfectants that may not be effective at neutralizing all pathogens.

In contrast, while regulatory practices play a critical role in ensuring water quality, it is the actual quality of the bathing water that directly influences swimmers' health outcomes. The emphasis on bathing water quality highlights the importance of monitoring and improving water conditions to reduce illness rates among this population. Therefore, focusing on this aspect is essential for mitigating health risks in recreational water environments.