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Scientists: Sleep Loss May Cause Brain Damage

Those of us who sleep longer on weekends to try to make up for the time we didn't get enough sleep during the week may actually be losing some brain cells.According to University of Pennsylvania neuroscientist Sigrid Veasey, the common idea that the 'sleep debt' can be replenished by getting extra sleep days later may be a myth.After putting a bunch of laboratory mice on a schedule similar to one people doing shift work experience, Veasey and her team discovered that the mice...

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