Research briefs

Short arms and legs linked to dementia 
Having short limbs is associated with an increased risk of dementia, claim US researchers. A five-year study of almost 3,000 people aged an average of 72 showed that arm and leg length were linked to risk of Alzheimer's disease. In men, an association was only found with arm length (Neurology Online 2008).

More than BP control needed in CKD
Strict BP control is not enough to protect against declining kidney function in African-Americans with chronic kidney disease (CKD), research has shown. Follow-up of 1,094 patients for 11 years showed that even though most had a BP below 130/80mmHg, most still went on to need dialysis (Ann Intern Med 2008, Online).

Tomato paste gives sun protection
Tomatoes could protect against sunburn and wrinkles, say UK researchers. A 12-week study showed the skin was better able to protect itself from UV damage in 10 people who ate tomato paste every day than 10 controls. The findings were presented at the British Society for Investigative Dermatology conference last month.

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