What symptoms may indicate a swimmer has chlorine sensitivity?

Chlorine sensitivity can manifest in various ways, and the symptoms that point most clearly to this condition include skin rashes, itchy eyes, and respiratory issues. These symptoms are indicative of how the body reacts to chlorine exposure, which is commonly used as a disinfectant in swimming pools.

Skin rashes can occur due to an allergic reaction or irritation from chlorine, while itchy eyes are often a direct result of chlorinated water coming into contact with the eyes. Respiratory issues, such as coughing or wheezing, can arise especially if a swimmer breathes in chlorine gases, which can irritate the respiratory tract.

While the other options include symptoms that may be associated with general discomfort or illness, they do not specifically capture the typical signs associated with chlorine sensitivity. Headaches and dizziness, nausea and fatigue, as well as an increased heart rate, can occur due to a variety of reasons, including dehydration, overexertion, or other environmental factors, but they are not the hallmark symptoms of chlorine sensitivity. Therefore, the combination of skin rashes, itchy eyes, and respiratory issues is the clearest indication of a sensitivity to chlorine.