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Health & longevity news archive: July-August 2009

Moderate drinking 'boosts bones'
(Aug 17, 2009)

Women who drink moderate amounts of beer may be strengthening their bones, according to Spanish researchers. Their study of almost 1,700 women, published in the journal Nutrition, found bone density was better in regular drinkers than non-drinkers. But the team added that plant hormones in the beer rather than the alcohol may be responsible for the effects.

Read more. Source: BBC

Beetroot juice 'boosts stamina'
(Aug 7, 2009)

Drinking beetroot juice boosts stamina and could help people exercise for up to 16% longer, a UK study suggests. A University of Exeter team found nitrate contained in the vegetable leads to a reduction in oxygen uptake – making exercise less tiring. The small Journal of Applied Physiology study suggests the effect is greater than that which can be achieved by regular training.

Read more. Source: BBC

researchers used a fluorescent protein to track gene expression
Replacement teeth grown in mice
(Aug 5, 2009)

Researchers in Japan have successfully grown replacement teeth in mice, according to a report in PNAS journal. Tissue containing the cells and instructions for building a tooth was transplanted into the jawbones of mice. They report that these tissue "germs" regularly grew into fully functional teeth with a hardness comparable to that of the natural variety.

Read more. Source: BBC

milk bottles
Dairy for children 'extends life'
(Jul 28, 2009)

Children who eat plenty of dairy foods such as milk and cheese can expect to live longer, a study suggests. Some 4,374 UK children from a 1930s study were traced 65 years later by researchers in Bristol and Queensland. They found those who had had high dairy and calcium intakes as children had been protected against stroke and other causes of death, journal Heart reports.

Read more. Source: BBC

At 27 both these monkeys are elderly, but it's the one on the left who has eaten more over his lifetime and looks the worse for wear
Proof mounts on restricted diet
(Jul 10, 2009)

Cutting calories may delay the ageing process and reduce the risk of disease, a long-term study of monkeys suggests. The benefits of calorie restriction are well documented in animals, but now the results have been replicated in a close relative of man over a lengthy period. Over 20 years, monkeys whose diets were not restricted were nearly three times more likely to have died than those whose calories were counted.

Read more. Source: BBC

cup of coffee
Coffee 'may reverse Alzheimer's'
(Jul 6, 2009)

Drinking five cups of coffee a day could reverse memory problems seen in Alzheimer's disease, US scientists say. The Florida research, carried out on mice, also suggested caffeine hampered the production of the protein plaques which are the hallmark of the disease. Previous research has also suggested a protective effect from caffeine.

Read more. Source: BBC

fruit and vegetables
Vegetarians 'avoid more cancers'
(Jul 2, 2009)

Vegetarians are generally less likely than meat eaters to develop cancer but this does not apply to all forms of the disease, a major study has found. The study involving 60,000 people found those who followed a vegetarian diet developed notably fewer cancers of the blood, bladder and stomach. But the apparently protective effect of vegetarian did not seem to stretch to bowel cancer, a major killer.

Read more. Source: BBC


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