News & Current Affairs

June 24, 2009

Right ear is ‘better for hearing’

Filed under: Health and Fitness, Latest, Reviews — Tags: , , , , , , , , , — expressyoureself @ 5:50 pm

Right ear is ‘better for hearing’

Ear

The left-side of the brain processes much of what is heard in the right ear

If you want to get someone to do something, ask them in their right ear, say scientists.

Italian researchers found people were better at processing information when requests were made on that side in three separate tests.

They believe this is because the left side of the brain, which is known to be better at processing requests, deals with information from the right ear.

The findings are reported online in the journal Naturwissenschaffen.

We can also see this tendency when people use the phone, most will naturally hold it to their right ear
Professor Sophie Scott, of University College London

In the first study, 286 clubbers were observed while they were talking with loud music in the background.

In total, 72% of interactions occurred on the right side of the listener.

In the second study, researchers approached 160 clubbers and mumbled an inaudible, meaningless utterance and waited for the subjects to turn their head and offer either their left or their right ear.

They then asked them for a cigarette.

Overall, 58% offered their right ear for listening and 42% their left.

In the third study, the researchers intentionally addressed 176 clubbers in either their right or their left ear when asking for a cigarette.

The researchers obtained significantly more cigarettes when they spoke to the clubbers’ right ear compared with their left.

Brain

In conclusion, the researchers said: “Talk into the right ear you send your words into a slightly more amenable part of the brain.

“These results seem to be consistent with the hypothesised specialisation of right and left hemispheres.”

Professor Sophie Scott, of the Institute of Cognitive Neuroscience at University College London, agreed.

“Most people process speech and language on the left-hand side of the brain and while it is not cut-and-dry a lot of what goes in our right ear will be dealt with by the left-side of the brain.

“The other side of the brain is more involved in things such as interpreting emotion and that is why we have these kind of findings.

“We can also see this tendency when people use the phone, most will naturally hold it to their right ear.”

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September 12, 2008

Bed sharing ‘drains men’s brains’

Bed sharing ‘drains men’s brains’

Image of a couple sleeping

Bed sharing disturbed sleep quality

Sharing a bed with someone could temporarily reduce your brain power – at least if you are a man – Austrian scientists suggest.

When men spend the night with a bed mate their sleep is disturbed, whether they make love or not, and this impairs their mental ability the next day.

The lack of sleep also increases a man’s stress hormone levels.

According to the New Scientist study, women who share a bed fare better because they sleep more deeply.

Sleepless nights

Professor Gerhard Kloesch and colleagues at the University of Vienna studied eight unmarried, childless couples in their 20s.

Each couple was asked to spend 10 nights sleeping together and 10 apart while the scientists assessed their rest patterns with questionnaires and wrist activity monitors.

The next day the couples were asked to perform simple cognitive tests and had their stress hormone levels checked.

Sharing the bed space with someone who is making noises and who you have to fight with for the duvet is not sensible
Professor Neil Stanley, a sleep expert at the University of Surrey

Although the men reported they had slept better with a partner, they fared worse in the tests, with their results suggesting they actually had more disturbed sleep.

Both sexes had a more disturbed night’s sleep when they shared their bed, Professor Kloesch told a meeting of the Forum of European Neuroscience.

But women apparently managed to sleep more deeply when they did eventually drop off, since they claimed to be more refreshed than their sleep time suggested.

Their stress hormone levels and mental scores did not suffer to the same extent as the men.

But the women still reported that they had the best sleep when they were alone in bed.

Bed sharing also affected dream recall. Women remembered more after sleeping alone and men recalled best after sex.

Separate beds

Dr Neil Stanley, a sleep expert at the University of Surrey, said: “It’s not surprising that people are disturbed by sleeping together.

“Historically, we have never been meant to sleep in the same bed as each other. It is a bizarre thing to do.

“Sleep is the most selfish thing you can do and it’s vital for good physical and mental health.

“Sharing the bed space with someone who is making noises and who you have to fight with for the duvet is not sensible.

“If you are happy sleeping together that’s great, but if not there is no shame in separate beds.”

He said there was a suggestion that women are pre-programmed to cope better with broken sleep.

“A lot of life events that women have disturb sleep – bringing up children, the menopause and even the menstrual cycle,” he explained.

But Dr Stanley added people did get used to sharing a bed.

“If they have shared their bed with their partner for a long time they miss them and that will disturb sleep.”

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