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news archive: Sep-Oct 2008
Health & longevity news archive: September-October 2008
Red LEDs could make anti-ageing device
(Oct 28, 2008)
Sunlight causes wrinkles, among other kinds of skin damage, but
a different kind of light – specifically the red glow from
LEDs - may help to smooth them out by altering the interactions
between water and elastic proteins in the skin. Andrei Sommer
and Dan Zhu of the University of Ulm in Germany have been investigating
how water molecules in the skin interact with different substances.
Read
more. Source: New Scientist |
Brain boost drugs 'growing trend'
(Oct 17, 2008)
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.
Read
more. Source: BBC |
New twist in brain obesity riddle
(Oct 5, 2008)
The discovery of another way in which the body appears to control
how much it eats could shed fresh light on obesity. US researchers
said poor diets may trigger a signalling system which prompts
the body to consume even more. When the signals – involving
a protein linked to inflammation - were blocked in mice, they
maintained normal weight.
Read
more. Source: BBC |
Clean living 'slows cell ageing'
(Sep 16, 2008)
Taking more exercise and eating the right foods may help increase
levels of an enzyme vital for guarding against age-related cell
damage, work suggests. Among 24 men asked to adopt healthy lifestyle
changes for a US study in The Lancet Oncology, levels of telomerase
increased by 29% on average. Telomerase repairs and lengthens
telomeres, which cap and protect the ends of chromosomes housing
DNA.
Read
more. Source: BBC |
Vitamin linked to brain shrinking
(Sep 9, 2008)
A vitamin found in meat, fish and milk may help stave off memory
loss in old age, a study has suggested. Older people with lower
than average vitamin B12 levels were more than six times more
likely to experience brain shrinkage, researchers concluded. The
University of Oxford study, published in the journal Neurology,
tested the 107 apparently healthy volunteers over a five-year
period.
Read
more. Source: BBC |
Climbing stairs can prolong life
(Sep 1, 2008)
Taking the stairs instead of the lift at work could save your
life, claim Swiss researchers. Banning the use of lifts and escalators
led to better fitness, less body fat, trimmer waistlines and a
drop in blood pressure, a study of 69 people found. This translates
to a 15% cut in the risk of dying prematurely from any cause,
calculate the University of Geneva team.
Read
more. Source: BBC |
New brain cells are essential for learning
(Sep 1, 2008)
Far from being a completed masterpiece, some parts of the brain
are works-in-progress, continuously churning out new cells. Now
we may know why the brain goes to all that trouble. In mice at
least, it appears that fresh brain cells are key to learning and
memory.
Read
more. Source: New Scientist |
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