London, March 19 - Sustained stress can cause Alzheimer's diseaese in advanced years. A research on mice has indicated there is an increased risk of dementia in case one remains constantly stressed. Sara Bengtsson, a PhD student from Umea University, in Sweden, tested her theory on mice and found that mice with higher levels of the hormone in their brains suffered impaired learning and memory, Daily Mail reported.

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Tokyo, March 17 - Scientists say green tea and coffee, if made a regular part of the diet, could benefit the heart, according to research conducted in Japan and published in the US.

Green tea and coffee may help lower your risk of having a stroke, especially when both are a regular part of your diet, according to research published in Stroke: Journal of the American Heart Association.

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Berlin, March 16 : Olive oil leads to satiety, shows a study that points out the mechanism behind it.

Reduced-fat food products are gaining popularity. More and more people are choosing "light" products in an attempt to lose weight, or at least in the hope that they would not gain pounds.

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Mumbai, March 15 : Alarmed by the high prevalence of sleep disorders among the Indian population and the lack of specific data on this, an Indian-Norwegian group that is running a chain of clinics across the country to treat the disorders will now conduct detailed research on them and recommend remedial measures.

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Patna, March 14 - Nearly 6,000 chickens were culled and a large quantity of eggs destroyed in Bihar's Purnea district in the last five days following an outbreak of bird flu and officials asked to take all preventive measures to check the spread of the virus, an official said Thursday.

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Washington, March 13 : A new study has found that stem cells from the patient's own body fat could help seek out and destroy cancer cells in a type of brain tumour.

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London, March 13 - A study has suggested lifelong exercise is the key to keep one's brain healthy into the old age.

In the study by King's College London (KCL), scientists proved how people who keep fit as a child and adult, through activity three or four times a week, improve dramatically cognitive functioning at 50, Daily Express reported.

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Los Angeles, March 12 : A drug that minimises leaks in the blood brain barrier can delay progress of Alzheimer's disease, says a study.

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Patna, March 11 - More than 2,000 chickens were culled and a large quantity of eggs destroyed in Bihar's Purnea district in the last 24 hours following an outbreak of avian flu, officials said Monday.

Purnea District Magistrate Manish Verma said bird flu was detected last week.

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London, March 9 - In a new study, scientists have shown that chewing gum can help one concentrate better on tasks that require constant attention.

Chewing gum aids concentration, and can help one stay focused longer, says a study by Kate Morgan and colleagues at Cardiff University, published in the British Journal of Psychology.

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Washington, March 7 - Deadly infections from bacteria that have become resistant to antibiotics are on the rise in the US, and hospitals and health care workers must take immediate action to protect patients, doctors at the Centers for Disease Control and Prevention (CDC) said.

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Washington, March 6 : People who suffer from insomnia have an increased risk of developing heart failure, according to a new study.

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Washington, March 6 - The US arm of Indian drug major Ranbaxy Laboratories has entered into an in-licensing agreement with Alembic Pharmaceuticals Limited to exclusively market the generic version of Pfizer Inc.'s anti-depression drug Pristiq in the US.

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London, March 5 : Sexual activity can lead to partial or complete relief in some migraine and a few cluster headache patients, a new study has suggested.

Majority of patients with migraine or cluster headache do not have sexual activity during headache attacks.

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Princeton, Mar 2 : An American study that sheds light on how effectively bacteria creates blockage in medical devices could eventually provide a solution to the problem.

The new study has examined how bacteria clog medical devices, and the result is not pretty. The microbes join to create slimy ribbons that tangle and trap other passing bacteria, creating a full blockage in a startlingly short period of time.

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Zurich, Mar 2 - According to a Swiss study, infection in the pregnant mother and stress during puberty could lie at the root of schizophrenia.

The interplay between an infection during pregnancy and stress in puberty plays a key role in the development of schizophrenia, behaviourists from ETH Zurich demonstrated in a mouse model.

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Washington, March 1 : A new study has shed light on why a healthy diet during pregnancy is critical to the future health of your children.

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Berlin, Mar 1 - Researchers have successfully identified genes that are linked to heart disease, which could improve its prediction and diagnosis, says a study.

Studies screening the genome of hundreds of thousands of individuals (known as Genome-wide association studies or GWAS) have linked more than 100 regions in the genome to the risk of developing cardiovascular disease.

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Washington, Mar 1 - Inspired by a fungi that secretes a compound to defend their territory, chemists have synthesized and tested dozens of compounds that could act as potential cancer drugs, shows a study.

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Washington, February 28 : Scientists from Brigham and Women''s Hospital have discovered two new drug targets in the inflammatory response pathway responsible for asthma attacks.

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