Exposure to cosmic radiation damages the central nervous system and causes permanent cognitive impairment, according to experiments on mice. The scientists subjected mice to radiation of high energy particles. They found that these radiations caused an inflammation in the brains of rodents that disrupted the transmission of nerve signals. Scans revealed how the brain of the communications network was affected by reductions in neuron structure.
Impairments of synapses that connect neurons, combined with other structural changes have interfered with the ability of nerve cells to efficiently transmit electrochemical signals, the researchers explain. “This is not good news for astronauts who make a journey of two to three years round trip to Mars,” said Charles Limoli, the University of California at Irvine, lead author of the research published Friday a specialized American magazine.
“The decline in work capacity, memory deficits and loss of consciousness and difficulty concentrating during flights in space could affect the core activities of the mission “he explains, adding that” these cosmic radiation could impair the cognitive abilities of astronauts for life. “
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