A new study revealed that the continuous swimming in indoor chlorinated pools might lead swimmers to develop serious health conditions because of the disinfection byproducts (DBPs), which result from the reaction between the chemicals used to disinfect these pools such as chlorine and organic matter and the sweat, skin cells, and urine, generating from the human body.

One of the main risks is that these chemicals might cause genotoxicity, which is a disease caused through the genetic mutilation of some parts of the patient's DNA that ultimately end in cancer, especially bladder cancer.

Although, the researchers confirmed that such disinfection byproducts are normally located in drinking water in similar amounts as that in the swimming pools, the risk is only present in case of indoor pools as people are more liable to be exposed to the DBPs through skin contact or even from the air.

The researchers stated that this study was the first of its kind, saying, "Despite the public health relevance, only a few studies, most rather recent, have investigated the chemistry and potential health effects of swimming pool water".

The study was associated with some figures showing that 48% of the people who are in habit of swimming for around 40 minutes showed some traces of lung cell damage.