Government urged to act to prevent looming national health emergency

The father of one of the tourists has called for a fresh investigation into her death after Thai authorities said she had probably died after eating 'toxic seaweed'

A potentially deadly drug-resistant form of salmonella is spreading across the world and has already infected hundreds of people in Britain, scientists have warned.

England's former chief medical officer has joined a global lobbying firm advising companies in the private health industry.

Breast cancer screening has had little impact on falling death rates from the disease, new research indicates.

One of the oddities of the human race is that people living in wealthier nations are less happy and more depressed than those in poorer ones. In France, the Netherlands and America, more than 30 per cent of people have suffered a major depressive episode, compared with 12 per cent in China, according to research from the World Health Organisation.

Aid agencies blocked from helping millions

Desperate women bind their stomachs to deaden hunger pains, eating next to nothing so children can be fed

The British public has donated £15 million to help people suffering from severe food shortages in East Africa.

Until a year ago the fight against Aids was focused on behaviour, such as using condoms and having fewer partners

A prostitute in Japan who developed a strain of drug-resistant gonorrhoea in her throat has triggered a worldwide alert about the spread of untreatable sexually transmitted diseases.

Sodcaster? Or 'sound-design consultant'?

As Europe and the US face up to the menace of antibiotic-resistant superbugs, UK farmers have dramatically increased their use of the drugs most likely to cause these lethal strains

The debate about what makes people gay has been raging for decades. Now scientists aim to settle it for good, says Jeremy Laurance