A study by scientists at Yale University has found that the circadian clock or the genetic mechanicism that regulates our sleep/awake cycle is vital to the immune system. People who have a reduced amount of sleep can have reduced immune system.
Effects of jet lag: Long-haul flights and the disruption they have on sleeping patterns is one lifestyle choice identified in the report that can lower the immune system
He said: ‘Sleep patterns of patients in intensive care are often disrupted because of the noise and prolonged exposure to artificial light.
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