New draft guidelines in US say male circumcision significantly reduces risk of HIV and other STDs
Humans 'will not be able to compete' with self-improving robots, says Stephen Hawking
DNA screening devices that profile health risks are banned in the US – but now legal in the UK
Scientists have observed an 'incremental change' in HIV which could lead to the virus gradually becoming 'watered down'
UN chief says Ebola could still spread beyond West Africa, where it kills 200 people per week
Children tested in Infectious Diseases Isolation Unit after showing viral symptoms on return from Africa
Early human tests suggest the drug is safe and may help immune systems fight Ebola, but more trials are needed
West Africa's Ebola epidemic is by far the most serious outbreak of the deadly virus
'Black Death' disease kills 47 people and spreads to the densely populated capital of Antananarivo
Burial workers discard bodies in protest over unpaid wages as government admits money has 'gone missing'
Biohazard suits are in short supply causing prices to rise as a result of 'increased anxiety' in the US
Hunching over devices is wreaks havoc on our posture and puts us at risk of serious back pain
Report calls for an urgent coordinated response as obesity reaches 'crisis proportions'
Nasa has been busy covering up an alien discovery and guarding humans from the edge of the Earth
Professor Brian Cox and Astronomer Royal Lord Rees support British-led plan to send a lander to the moon
Around 60 per cent of men who admitted to paying for sex had done so overseas, usually in Asia or Europe
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
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