More gene clues to Parkinson's 
Genes play a bigger role in Parkinson's disease than previously thought, according to the largest genetic analysis yet.
Herbal weight loss pill warning
People are being warned to stop using a weight loss pill sold over the internet and in Chinese medicine shops.
Global 'failure' over cholesterol
Most people around the globe with high cholesterol are not getting the treatment they need, claims the largest ever study representing 147m people.
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As public protests spread, does a psychologist think that a crowd has a mind of its own?
