Morning Grogginess 'As Bad as Being Drunk'
Channel 4
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Morning grogginess can affect brain power as much as being drunk, US researchers have said. And people who have just woken up after eight hours of sound sleep have more impaired thinking than they do after being deprived of sleep for more than 24 hours, the study said.
The team from the University of Colorado at Boulder asked a group of volunteers to complete basic mathematical tests, which involved adding randomly generated two-digit numbers, after sleeping for eight hours.
The study found that the volunteers showed the most severe impairments caused by sleep inertia within the first three minutes of waking up. The researchers said that the most severe effects of grogginess generally started to go away within the first 10 minutes. But the effects were often detectable for up to two hours, the study found.
Jan 11, 2006
Channel 4
_______
Morning grogginess can affect brain power as much as being drunk, US researchers have said. And people who have just woken up after eight hours of sound sleep have more impaired thinking than they do after being deprived of sleep for more than 24 hours, the study said.
The team from the University of Colorado at Boulder asked a group of volunteers to complete basic mathematical tests, which involved adding randomly generated two-digit numbers, after sleeping for eight hours.
The study found that the volunteers showed the most severe impairments caused by sleep inertia within the first three minutes of waking up. The researchers said that the most severe effects of grogginess generally started to go away within the first 10 minutes. But the effects were often detectable for up to two hours, the study found.
Jan 11, 2006
