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Health & longevity news archive: September-October 2006





woman sneezing
Regular exercise 'prevents' colds
(Oct 27, 2006)


Taking regular, moderate exercise cuts the risk of colds, research suggests. A trial of the effect of exercise in post-menopausal women found up to a three-fold reduced risk of cold in those who did more physical activity. And the ability to ward off colds grew stronger over time, the study in the American Journal of Medicine found.

Read more. Source: BBC

elderly woman
Stress boosts Alzheimer’s proteins in the brain
(Oct 17, 2006)


Brief periods of stress can cause a rapid rise in the brain proteins linked to Alzheimer’s disease, according to a study in mice. Just three days of stress caused an abrupt 42% increase in brain proteins thought to cause the disease. The study helps to shed light on why people who experience great stress and anxiety appear more prone to this illness, experts say.

Read more. Source: New Scientist


walnuts
Walnuts 'combat unhealthy fats'
(Oct 12, 2006)


Eating walnuts at the end of a meal may help cut the damage that fatty food can do to the arteries, research suggests. It is thought that the nuts are rich in compounds that reduce hardening of the arteries, and keep them flexible. A team from Barcelona's Hospital Clinico recommend eating around eight walnuts a day.

Read more. Source: BBC

cup of tea
Black tea 'soothes away stress'
(Oct 5, 2006)


Scientists have proved what many tea drinkers already know – a regular cuppa can help you recover more quickly from the stresses of everyday life. A team at University College London found black tea helps to cut levels of the stress hormone cortisol circulating in the blood. They found people who drank tea were able to de-stress more quickly than those who drank a fake tea substitute.

Read more. Source: BBC

man eating junk food
Overeating 'like drug addiction'
(Oct 3, 2006)


For obese people overeating is akin to drug addiction, research suggests. Scans on overweight people revealed the regions of the brain that controlled satiety were the same those in drug addicts craving drugs. The US team who carried out the research said the findings could potentially help to uncover new treatments for obesity.

Read more. Source: BBC

E. coli bacteria
Ageing may be a lifestyle 'choice' for bacteria
(Sep 27, 2006)


Ageing may be a strategic “choice” for bacteria, since poor nutrition can lead to immortality in the single-celled organisms, a mathematical modelling study predicts. In 2005, their mortality was declared, after bacteria were shown to get old and die. That obituary is now looking premature.

Read more. Source: New Scientist

vitamin D pills
Vitamin D 'slashes cancer risk'
(Sep 17, 2006)


Taking vitamin D tablets could substantially reduce the risk of pancreatic cancer, research suggests. US scientists found taking the tablets cut the risk of a disease, which has a poor prognosis in almost half of cases. There are more than 3,600 new cases of pancreatic cancer in women and more than 3,500 in men in the UK each year. Surgery is not often effective.

Read more. Source: BBC

comparison of Alzheimer's brain with normal brain
Alzheimer's 'self-defence found'
(Sep 12, 2006)


Researchers believe that they have found how the body protects itself against diseases like Alzheimer's. International experts found a brain enzyme that "snips apart" tangles of a protein linked to a decline in mental abilities and brain cell death. The scientists said that, in the future, drugs could be used to enhance this natural defence mechanism.

Read more. Source: BBC

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