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Tuesday, October 14, 2008

One in 10 iPod users risks going deaf, experts warn

By Daniel Martin

In parks, on trains and even pounding the pavement, we are permanently wired for sound.

But our love affair with our iPods and MP3 players could cost us our hearing.

More than a million Britons could go deaf because they listen to their music too loud and too long, experts warn.

iPod user

Young people are at risk from permanent deafness caused by listening to their iPods at high volumes, a new report shows

Up to 10 per cent of iPod and other MP3 users across Europe are risking deafness if they listen for more than an hour a day for at least five years.

That means about 10million could end up sacrificing their hearing simply because they can't stop listening to music.

The warning comes from the EU's scientific committee on emerging health risks.

It carried out a study into the soaring numbers routinely exposed to high noise volumes through personal music players.

An EU safety standard already exists restricting the noise level of such players to 100 decibels.

But the scientists warn that the danger level is much lower than this.

They say music pumped into the ears above 89 decibels for long periods of time is actually louder than currently allowed in factories. Their report will be welcomed by campaigners for the deaf - and the fed-up commuters who have to endure loud music leaking from the earphones of neighbours on packed buses and trains.

Emma Harrison, head of campaigns at the Royal National Institute for Deaf People, said: 'Decision makers and opinion formers are finally waking up to the hearing loss time bomb threatening many young MP3 users.'

She said the institute had started a Don't Lose the Music campaign, which raises awareness of the dangers of listening to MP3 players too loudly.

'Our research revealed that 58 per cent of 16 to 30-year-olds are completely unaware of any risk to their hearing from MP3 players,' she said.

'The announcement that further action is needed is a vindication of this work.

'We want to see the Government and industry taking decisive action to save the hearing of future generations.'

The committee said users should turn down the volume on their music players, or, if possible, set the machine's maximum usable volume at a lower level.

Between 50million and 100million people across the EU are thought to listen to portable music players on a daily basis - equivalent to between six and 12 million in Britain.

EU consumer affairs commissioner Meglena Kuneva said a conference early next year would bring governments, the music industry and consumers together to discuss the way forward.

'I am concerned that so many young people who are frequent users of personal music players and mobile phones at high acoustic levels may be unknowingly damaging their hearing irrevocably,' she said.

'The scientific findings indicate a clear risk and we need to react rapidly.

'Most importantly we need to raise consumer awareness.

'We need also to look again at the controls in place to make sure they are effective and keep pace with new technology.'

Original here

Brain boost drugs 'growing trend'


brain scan
The drugs are normally used to treat people with mental illness

Increasing numbers of people are using prescription drugs like Ritalin to boost alertness and brain power, say experts.

Up to a fifth of adults, including college students and shift workers, may be using cognitive enhancers, a poll of 1,400 by Nature journal suggests.

Neuropsychologist Professor Barbara Sahakian of Cambridge University said safety evidence is urgently needed.

Experts gather to debate this topic at a meeting in London on Monday evening.

The use of these cognitive enhancing drugs is spreading to younger and younger people. That's a concern
Neuropsychologist Professor Barbara Sahakian

Professor Sahakian's own work shows 17% of students in some US universities admit to using the stimulant Ritalin (methylphenidate) - a drug designed to treat hyperactive children - to maximise their learning power.

One in five of the 1,400 people who responded to the Nature survey said they had taken Ritalin, Provigil (modafinil) or beta-blockers for non-medical reasons. They used them to stimulate focus, concentration or memory.

Of that one in five, 62% had taken Ritalin and 44% Provigil - a drug normally prescribed to alleviating daytime tiredness in people suffering from the rare sleep disorder narcolepsy.

Unchecked

Most users had somehow obtained their drugs on prescription or else bought them over the internet.

Although these are only snapshots of use, Professor Sahakian says it does suggest these drugs are becoming more popular.

Professor Sahakian said given the increasing use of these drugs outside of their intended clinical setting, safety trials were urgently needed.

"We do not really have long-term efficacy and safety data in healthy people. These are studies that really need to be done.

"The use of these cognitive enhancing drugs is spreading to younger and younger people. That's a concern.

"Methylphenidate does have substantial abusive potential so we have to be worried about substance abuse problems and the use of these drugs in the developing brain in children."

John Harris, professor of bioethics at the University of Manchester said people should be allowed to make their own minds up about these drugs.

He said: "If these cognitive enhancing drugs make our lives better and make us better able to concentrate and better able to perform, this would surely be a good thing."

The debate will be heard at Kings Place, London.

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Are Our Cushy, Tech-Filled Lifestyles Halting Evolution?

Back in the good old days, the weak, slow and stupid would be eaten by lions, leaving the quick and the smart to live on and breed quick and smart babies. But these days, any moron can wheel themselves around a Wal-mart on a motorized scooter, buying Hot Pockets with food stamps while talking on their prepaid cellphones, going home to have 15 other fat, stupid babies. This isn't evolution! It's de-evolution! And we have technology to thank for it.

Well, at least according to British genetics expert Steve Jones. "In a modern world of central heating and plenty of food, the same mutation is far less likely to give a child any advantage. A baby born today can expect to live a long and healthy life, which in turn works against the evolutionary tool of natural selection."

Basically, living in this technologically-advanced era "greatly reduces the influence of mutation, random change and natural selection, the three major forces of evolution." That means it's no longer survivor of the fittest, instead just survival of everyone. Which means we won't be seeing as many changes in the species as we've seen in the last few millennia. Instead we may have hit a plateau, a plateau where everyone gets to add their seeds to the gene pool no matter how dumb and slow they are.

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