Archive of posts on Research & Development

Men’s fertility linked to voice

Men with deep-pitched voices are more fertile and father more children, according to a study at Harvard University, US. The study was based on the reproductive patterns of a Tanzanian hunter tribe called Hazda that continues to live pretty much the same way that human beings did 200,000 years ago. The Hazda tribe females collect → Continue reading »

Night Shifts: A cause of cancer

Overnight shift work will be named as a probable cause of cancer by the World Health Organization’s International Agency for Research on Cancer. The findings, published in a recent issue of Lancet Oncology, can affect millions of people worldwide. The analysis is based on research that shows higher rates of breast and prostate cancer among → Continue reading »

Toxin in breast milk

Scientists have discovered the mechanism by which a chemical known as perchlorate can collect in breast milk and cause cognitive and motor deficits in newborns. Used since the 1940s to manufacture explosives and rocket fuel, the contaminant is still widely present in the water and food supply, experts say. High concentrations of perchlorate in breast → Continue reading »

Skinning Cells

Embryonic stem cells are the mother of all body cells. They are not specialized cells, and can undergo division for a long period. And, under the right circumstances, these cells can evolve into specific organs, such as heart muscles, bone marrow or pancreas. Just as the sculptor can fix a broken arm, scientists dream of → Continue reading »

Scientists create heart

Scientists from the University of Minnesota have created a new heart in the laboratory using hearts of dead rats. The study, published in Nature Medicine, could bring hope for patients whose heart muscles have been damaged. → Continue reading »