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Night light from smartphone could pass weak immune systems

Night light from smartphone could pass weak immune systems

Posted April. 01, 2017 07:09,   

Updated April. 01, 2017 07:14


A research team led by Professor Randy Nelson of neuroscience at Ohio State University has found that hamster pups are born with weakened immune systems and impaired endocrine activity when their parents have circadian disruptions due to light pollution prior to mating. The study appeared in the academic journal “Scientific Reports” on the March 31 issue.

Researchers exposed adult hamsters of both sexes to either a standard light day and dark night cycle for nine weeks. Then the hamsters were mated in four groups—mothers or fathers with dim-light exposure, both parents with exposure to light at night and both parents with standard light exposure. After mating, the entire group lived under standard light conditions.

Researchers found that the hamsters’ offspring that either fathers or mothers were exposed to light pollution were born with impaired immune systems and had problems caused by endocrine imbalance. This means that the dim light exposure had various repercussions for offspring, and that fathers and mothers appeared to pass along genetic instructions that impaired immune response and decreased endocrine activity during the process of mating and breeding.

“The experiment proved a possibility that the negative changes seen in the pups were traced to both parents, although it was tested on animals. Same theory can be applied to humans," Nelson said. "The problems came from both the sperm and the egg. So, couples should be careful to minimize exposure to artificial light from smartphone, TV, and others at night.”