E-cigarettes: There is no evidence to suggest that nicotine is carcinogenic, but it is addictive

Analysis: Some research done on risks and benefits of e-cigarettes, but more needed

File photograph of a high level isolation apparatus. Photograph: Jonathan Brady/PA Wire

What are the implications for others if virus is diagnosed? asks Dr Muiris Houston

On this occasion it appears the Act failed to offer guidance to doctors on the most appropriate response to a request for termination.

Analysis: In this case the Act failed to offer guidance on most appropriate response

In an analysis of 16 studies involving more than 830,000 participants, researchers found the average risk of death from all causes was reduced by 5 per cent for each daily serving of fruit and vegetables.

Research says going beyond recommended number of portions may have no further benefit

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