Being wealthy in the Middle Ages was not all benefits, as rich people living in Europe during this period were more exposed to the toxic heavy metal lead than the poor, according to a study.


Rich people in Middle Ages were prone to unhealthy life


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The colours of Vincent van Gogh's famous "Sunflowers" painting at the Van Gogh Museum in Amsterdam are changing over time because not all of the mixture of pigments used by the Dutch master are photochemically stable, a new study suggests.


Vincent van Gogh's 'Sunflowers' are wilting


Increasing a crucial cholesterol-binding membrane protein in nerve cells (neurons) within the brain can improve learning and memory in aged mice, a new study shows.


Enhancing brain function may curb memory loss


Those who are aware of each and every moment of their life have less fat around their belly than those who do not pay attention to the present, new research shows.


Everyday mindfulness can cut belly fat


Mass extinctions which occurred over the past 260 million years were likely caused by comet and asteroid showers, scientists report.


Asteroid showers caused mass extinctions on Earth


President Barack Obama gave a shout-out to an Indian-American kid who recently made history by becoming the first person to earn a second Global Finalist award in the 2015 Google Science Fair.


Indian-American kid gets a shout-out from Obama


A DNA study of 549 dogs that represented 38 countries revealed that domesticated dogs first arrived in Asian countries of Nepal and Mongolia, media reported here on Tuesday.


Dogs originated near Nepal and Mongolia: Researcher


Male and female hearts change over time in significantly different ways, says a new study.


Male and female hearts age differently


Yoga exercises provide improvements that are just as effective as traditional pulmonary rehabilitation methods in improving lung function of patients with chronic obstructive pulmonary disease (COPD), researchers from All India Institute of Medical Sciences (AIIMS) here have found.


Yoga improves lung function in patients with COPD


In a first, a team of researchers from Oxford University and the New York-based Stony Brook University has used light to precisely control electrical waves that regulate the rhythm of our heartbeat.


Researchers control heart rhythm by light


Upturning a long-held belief that early Earth was dry and desolate, researchers have now found evidence that life likely existed on our home plant at least 4.1 billion years ago -- 300 million years earlier than previous research suggested.


Life on Earth began 4.1 billion years ago, shows Study


In men the heart muscle that encircles the main heart chamber grows bigger and thicker with age, while in women, it retains its size or gets somewhat smaller, reveals a new study of the ageing hearts of nearly 3,000 adults.


Men, women have different reasons for heart failure


For some of us, solving sudoku puzzles can be a real headache but for a 25-year-old German man, his passion for sudoku led to frequent seizures.


Sudoku puzzles gave this German seizures


Genetic ancestry as well as facial characteristics may play an important part in who we select as mates, researchers including an Indian-origin scientist reported.


Gene ancestry key to mate selection


Air pollution from diesel vehicles may be reducing the availability of almost half the most common flower odours that bees use to find their food, says a new study.


Diesel fumes change flower odours that bees need


The chemical produced by decaying tissue of dead bodies can produce a fight-or-flight response in humans, researchers have revealed, suggesting that humans, like other species, can perceive certain scents as threatening.


Smell of death can threaten humans


Amphibians that use toxins to protect themselves against predators are at a higher risk of extinction than those who use other types of defence, new research has found.


Poisonous frogs face greater risk of extinction


Researchers have found that presence of a protein in blood can be an early indicator of end-stage renal disease -- and ultimately of death -- in people with hypertension.


Protein in blood can predict fatal kidney disease


Coronary artery disease is the leading cause of death worldwide, but there is currently no effective method to regenerate new coronary arteries in diseased or injured hearts.


Cells that can help mend a broken heart


Climatic changes, an increase in agricultural land use and population growth could lead to severe water shortage in Nepal in the coming decades, warns a new study.


Severe water shortage to hit Nepal: Study


A diet high in fat content can lead to anxiety and depression by causing measurable changes in the brain, researchers report.

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