Research our of Harvard University has claimed that some people can improve their quality of sleep with the ability to cut out excess noise from around their bed.Researchers at the premier institution highlighted that this process, which happens in the brain, only affects a lucky few, and is not universal.The BBC reported that the study's conclusions were gathered following observation of a dozen volunteers in rude health, and published in the Current Biology journal.Things called "sleep spindles," which are used to muffle external sounds after one has hit the mattress, were identified by the team, led by Harvard Medical School's Dr Jeffrey Ellenbogen.Ellenbogen said: "In recent years, it has been discovered that the sleep spindle is generated by the thalamus."And since the thalamus is the gateway of sensory information to the brain, it has been hypothesised that spindles are markers of the blockade of noises during sleep."People were recently advised that they might be heightening their risk of cardiovascular problems by not getting enough sleep, with seven hours suggested as the target figure.
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