Parents mourning the loss of their 22-month-old daughter to suspected meningococcal disease say the illness came without warning.

Papua New Guinea's prolonged cholera outbreak has surfaced in the capital Port Moresby, claiming three lives.

Compared to other mammals, humans produce low numbers of viable sperm.

An apparently healthy man has become the first person in the world to be prescribed a medicine based on an analysis of his genome.

Elton John says he's been sober for 20 years, since shortly after the death of an Indiana teen with Aids who the musician credits with inspiring him to turn his life around.

Australia is poised to introduce the world's harshest anti-smoking laws, with tobacco companies forced to sell cigarettes in plain packets resembling prescription drug packs.

Results from the pig-cell trial so far indicate improved control of blood-sugar levels and reduced need for insulin injections.

Smoking, drinking too much, inactivity and poor diet can collectively age you by 12 years.

Life insurers are asking people seeking insurance if they have sex with prostitutes.

Professor Richard Faull has spent 35 years studying the human brain so he can help people affected by brain disorders including Parkinson's, Alzheimer's and Huntington's disease.

Up to 20 million people in Bangladesh are at risk of suffering early deaths because of arsenic poisoning - the legacy of a well-intentioned but ill-planned water project.