Dutch biologists believe that there may be an evolutionary advantage to sharing bacteria through kissing
Fears NHS England won't cope this winter prompt extra money as election year looms
Experts want to banish sugary drinks at meal times and cut recommended sugar intake in half
The mysterious 'song' of a comet hurtling through space has been captured by the Rosetta spacecraft
The treatment involves using a disabled form of the virus to train the immune system to kill tumour cells
The tech giant has leased an airfield from Nasa as the space agency tries to reduce its footprint on earth
Soon sex and reproduction will be no longer be linked as couples have children through IVF
Surgeons say cost of obesity crisis could bankrupt the NHS – but operations can save money
Newly developed enzyme 'can kill superbugs' and will 'revolutionise' fight against antibiotic-resistant bacteria
Academy of Medical Royal Colleges calls on doctors and nurses to stop overprescribing medication
A street vendor in Kabul sells balloons to a group of Afghan children. Although the economy in Afghanistan has shown some signs of improvement since the fall of the Taliban in 2001, low wages and unemployment remain challenges for the government.
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