A study published in the journal Antioxidants and Redox Signaling suggests that heavy cell phone users' are at greater risk of cancer.
Researchers at the Tel Aviv University's Sackler Faculty of Medicine and the Otolaryngology Head and Neck Surgery Department at the Rabin Medical Center looked for clues in the saliva of cell phone users and connection to developing cancer.
The researchers examined the saliva content of 20 heavy-user patients, defined as speaking on their phones for a minimum of eight hours a month. Their salivary content was compared to that of a control group, which consisted of deaf patients who either do not use a cell phone, or use the device exclusively for sending text messages and other non-verbal functions. Compared to the control group, the heavy cell phone users had a significant increase in all salivary oxidative stress measurements studied.
The saliva of heavy users showed indications of higher oxidative stress — a process that damages all aspects of a human cell, including DNA — through the development of toxic peroxide and free radicals. There is considerable oxidative stress on the tissue and glands which are close to the cell phone when in use. The damage caused by oxidative stress is linked to cellular and genetic mutations which cause the development of tumours.
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