Pool season isn't complete without the scent of chlorine in the air. But does smelling the chemical mean the pool is overchlorinated? And if so, what happens if you're overexposed to the disinfectant?

Audrey Eldridge brings an inhaler with her whenever she gets in the pool. An elite Masters swimmer from Colorado Springs, she swims between 3,000 and 4,000 meters per day. She notices respiratory ...