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Sleep and mobile phones

Chatting on a mobile phone before sleep affects the electrical activity of your brain, as radiation from it stimulates brain activity in the early stages of sleep, an Australian study shows. Associate Professor Andrew Wood of Melbourne's Swinburne University says his study found that exposure to such radiation can reduce levels of melatonin, connected to the body's sleep-wake cycle.

But the study, reported in the International Journal of Radiation Biology, says it is premature to conclude that talking on your phone before bed will spoil a good night's sleep.

The study's 55 participants received 30 minutes of phone radiation, or 30 minutes of `sham' radiation before being tucked into bed. Exposure to radiation resulted in heightened alpha-wave activity in the brain. Alpha waves are associated with relaxation and daydreaming but normally disappear with sleep.

— (ANI)

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