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Showing posts with label brain. Show all posts
Showing posts with label brain. Show all posts

Monday, 30 September 2013

Lifestyle changes necessary to combat cardiovascular diseases

Lifestyle changes necessary to combat cardiovascular diseases

This was stated by the experts at the World Heart Day organised at the Aga Khan University Hospital.

radio
Lifestyle changes are necessary to combat the 
cardiovascular diseases.
This was stated by the experts at the World Heart 
Day organised at the Aga Khan University Hospital.
The experts maintained that even more alarming is 
the fact that over a third of all deaths in Pakistan
 are caused by CVD which has emerged as the leading
 non-communicable disease in the country.
Cardiovascular diseases are a group of disorders of
 the heart and blood vessels. Heart attacks and 
strokes are usually acute events and are mainly 
caused by a blockage that prevents blood from 
flowing to the heart or brain.
In Pakistan‚ prevalence of hypertension has been found to be nineteen per cent in population
 over fifteen years of age.
Perhaps even more worrisome is that up to 25 per cent of the children in Pakistan are either
 overweight or at risk of being overweight.
This year the global theme `Take the road to a healthy heart' focused on lifestyle changes in
 order to prevent and control cardiovascular disease with a special focus on women and children.

Saturday, 14 September 2013

It is Dangerous to Sleep With a Cell Phone Under Your Pillow

It is Dangerous to Sleep With a Cell Phone Under 

Your Pillow

Most experts agree with the warnings to avoid sleeping with 
a cell phone under your pillow.  
radio
The "under the pillow" 
angle of cell phone radiation
 is just a subset of a larger 
discussion on the topic of cell
 phone radiation in general. 
Though there is some evidence
 to support harmful effects of
 cell phone use on the brain‚ 
the jury is out on brain cancer
or brain tumors and cell phone use.
Nevertheless‚ most experts advise
 taking the safe route and limiting
 unnecessary extended exposure‚
 such as sleeping with a cell phone
 next to your head.
Ways to Reduce Cell Phone 
Radiation:-
While the debate rages‚ many
 people prefer to err on the side
 of caution and try to minimize 
their cell phone radiation exposure.
Such steps include:
Keeping cell phone several feet away while sleeping.
Using speaker instead of talking directly into the handset.
Text instead of talking.
Use headphones or Bluetooth connectors.
If you are using your phone at night for its clock or alarm features‚ consider putting it
 in "airplane mode" which suspends the phone's transmission functions.

Thursday, 12 September 2013

Sleep boosts brain cell numbers

Sleep boosts brain cell numbers

In contrast‚ the genes involved in cell death and stress 
responses were turned on when the mice were forced to 
stay awake.
radio
Scientists believe that
 they have discovered 
a new reason why we 
need to sleep it replenishes
 a type of brain cell.
Dr Chiara Cirelli and 
colleagues from the 
University of Wisconsin
 found that the production
 rate of the myelin making
 cells‚ immature 
oligodendrocytes‚ doubled
 as mice slept.
The increase was most marked during the type of sleep that is associated with 
dreaming - REM or rapid eye movement sleep - and was driven by genes.
In contrast‚ the genes involved in cell death and stress responses were turned on when the
 mice were forced to stay awake.
Dr Cirelli said that for a long time‚ sleep researchers focused on how the activity of nerve 
cells differs when animals are awake versus when they are asleep.

Monday, 9 September 2013

Sleep loss can make you fat: Study

Sleep loss can make you fat: Study

Researchers have long pointed to a correlation between a 
steep rise in obesity in industrialized nations and a decline in 
sleep duration.
radio
Scientists had found evidence
 that a lack of sleep causes 
changes in brain activity that 
lead to people feeling hungrier
 and craving more fattening
 foods.
Researchers have long pointed
 to a correlation between a
 steep rise in obesity in
 industrialized nations and a
 decline in sleep duration.
A causal link was suspected‚
 but science has not been able to explain the mechanism‚ until now.
A team from the University of California said they used MRI (magnetic resonance imaging)
 scans to spot changes in the brain activity of sleep-deprived test subjects.
Researchers said these findings provide an explanatory brain mechanism by which
 insufficient sleep may lead to the development/maintenance of obesity.

Monday, 2 September 2013

Weight loss can improve memory

Weight loss can improve memory

Brain scans taken during the exercise suggest that they 
had become more efficient at storing and recalling memories.
radio
Swedish researchers have found that 
older‚ overweight women who dieted 
went on to score better in memory tests
 after they had lost weight.

Previous studies had shown that obese
 people have worse episodic memory the
 ability to remember events that happen
 during your life but the new findings 
suggest this may be reversible.

The scientists said that the women's 
performance on the test improved after
 they lost weight‚ and brain scans
taken during the exercise suggested that they had become more 
efficient at storing and recalling memories.

Saturday, 31 August 2013

Scientists find clue to age-related memory loss


Scientists find clue to age-related memory loss
Experiments on mice suggested low levels of a protein in the brain 
may be responsible for memory loss.
radio
A clue to why memory deteriorates with age has been found by US
 researchers.
Experiments on mice suggested low levels of a protein in the brain 
may be responsible for memory loss.
It is hoped the discovery could lead to treatments to reverse 
forgetfulness‚ but it is a big leap from the mouse to a human brain.
The team at Columbia University Medical Centre started by analysing 
the brains of eight dead people‚ aged between 22 and 88‚ who had 
donated their organ for medical research.

Thirsty work: drinking water can improve reaction times


Thirsty work: drinking water can improve reaction times
Around 80 percent of the brain is water‚ so it is clearly important 
to make sure it gets enough.
Scientists have found that the Quenching your thirst during the hot weather with a glass of water 
can help make your brain work faster.
Published in the journal Frontiers in Human Neuroscience discovered that people who drank a pint
 of water before conducing mental tasks had reaction times that were 14% faster than those who did 
not have drink.
Dr Caroline Edmonds a psychologist said that Reaction time seemed to be most affected by water‚ 
particularly if the people were thirsty.
Around 80 percent of the brain is water‚ so it is clearly important to make sure it gets enough.
radio, water, drinking, reaction time