(BBC) Being happy and positive may help ward off heart disease, a study suggests.
(BBC) The "tipping point" that sets children on the way to a lifetime of obesity often occurs before the age of two, say US researchers.
(BBC) Going to bed earlier protects teenagers against depression and suicidal thoughts, research suggests.
A "molecular switch" that can prevent Huntington's disease developing is found in mice.
(BBC) Scientists say they have found a way to disarm a protein thought to play a key role in leukaemia and other cancers.
(BBC) - An international HIV/Aids expert tells the BBC that the epidemic in Russia is now out of control.
(BBC) How twins help explain a new branch of genetics
(BBC) An experimental HIV vaccine has for the first time cut infection rates, in a major trial in Thailand, researchers say.
(BBC) Two potentially key genes linked to the development of Alzheimer's disease have been uncovered by UK researchers.
(BBC) The poorest people in the UK are more than twice as likely to have diabetes and develop complications, a report says.
Human trials of a vaccine to protect against the swine flu virus, which has killed hundreds worldwide, begin in Australia.
New mothers are advised to avoid crowds to reduce swine flu risks, but suggestions of postponing pregnancy are rejected.
(BBC) Why a firm is looking for staff with autism
(BBC) A massive study of home births suggests that, in labours deemed low-risk, the risks to babies are no higher than if born in hospital.
(BBC) US study looks at air quality's impact on life expectancy
(BBC) A new "double whammy" malaria drug could work on its own and as a "booster" for existing drugs, research suggests.
(BBC) Scientists pinpoint a genetic mutation which may trigger up to 70% of cases of melanoma, the most deadly form of skin cancer.
(BBC) Doctors ready to treat all our behavioural quirks
(BBC) Scientists have discovered a single gene may control how some patients with schizophrenia and bipolar disorder respond to their medication.
(BBC) Palestinians in the West Bank and Gaza are suffering from an "ailing landscape" of health services, a new study claims.
(BBC) HIV is evolving rapidly to escape the human immune system, an international study has shown.
(BBC) Long working hours may raise the risk of mental decline and possibly dementia, research suggests.
(BBC) Abuse in early childhood permanently alters how the brain responds to stress, a Canadian study suggests.
(BBC) Lifestyle changes and screening have shifted the type of breast cancers women are diagnosed with over the past two decades, research suggests.
(BBC) One of the first attempts use gene therapy to treat HIV has produced promising results in preliminary clinical trials.
(BBC) Children exposed to high levels of traffic pollution in the womb could be at risk of developing asthma because of key genetic changes, research suggests.
(BBC) A light as bright as a million-watt bulb could help identify early signs of Parkinson's disease, British researchers say.
(BBC) The "first draft" of a Neanderthal genome shows no evidence that humans and Neanderthals interbred, scientists say.
(BBC) A US study offers new evidence of a link between hormone replacement therapy and a raised risk of breast cancer.
(BBC) Treatment with insulin could help patients with Alzheimer's, which may be closely related to type II diabetes, scientists say.
(BBC) Children aged under 15 should never be given alcohol, even in small quantities, England's chief medical officer is to say.
(BBC) Just one brain cell is capable of holding fleeting memories vital for our everyday life, according to US scientists.
(BBC) US regulators clear the way for the world's first study on human embryonic stem cell therapy, to help patients with spinal injuries.
(BBC) The number of people on the organ donor register has hit a record 16m, but there remains a shortage of organs.
(BBC) Cuts in air pollution in US cities have added an average of five months of life to their inhabitants, research suggests.
(BBC) A gene mutation that almost guarantees the development of heart disease is carried by one in 25 South Asian people.
(BBC) A woman in Niger has a one in seven chance of dying during pregnancy or childbirth, a Unicef report on maternal health says.
(BBC) Skin cancer patients have a higher chance of developing other forms of the disease, research suggests.
(BBC) A woman from London will give birth next week to the first British baby screened to be free of a gene for breast cancer.
(BBC) Scientists believe successful tests in monkeys could prove a step towards a new type of drug to combat HIV.
(BBC) The treatment given to US addicts
(BBC) Universal testing for HIV, followed by immediate treatment could cut full-blown Aids cases by up to 95%, a study says.
(BBC) An implant which works by firing infrared light into the inner ear is being investigated by US researchers.
