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For the first time, scientists have discovered a connection between a cell's fat content and its lifespan, which could explain the 'obesity paradox' that's been puzzling scientists for decades: why obese people have the lowest all-cause mortality rates, whereas the rate for those who are fit and lean is higher.

TED Talk Subtitles and Transcript: Geneticist Jennifer Doudna co-invented a groundbreaking new technology for editing genes, called CRISPR-Cas9. The tool allows scientists to make precise edits to DNA strands, which could lead to treatments for genetic diseases ... but could also be used to create so-called "designer babies." Doudna reviews how CRISPR-Cas9 works -- and asks the scientific community to pause and discuss the ethics of this new tool.

The real power of the biological tool lies in exploring how genomes work.

Birds and bees are just the beginning for a burgeoning technology.

Scientists reveal that the combination of two molecular signals determines which cells that have already differentiated can regain their stem cell properties.

A controversial study has suggested that the neurodegenerative disease might be transferred from one person to another. Now scientists are racing to find out whether that is true.

A new study shows that the act of creating pluripotent stem cells for clinical use is unlikely to pass on cancer-causing mutations to patients.

We are accustomed to treating aging as a set of things that go wrong with the body. But for more than twenty years, there has been accumulating evidence that much of the process takes place under genetic control.

The new drug, called IONIS-HTTRx, silences the gene known to be responsible for the production of a protein which causes Huntington’s

You may have already heard about the growing problem caused by antibiotic resistance - the spread of superbugs that have evolved to become resistant to the antibiotics we usually attack them with. It's an issue that could have very serious implications for global health and disease if it isn't tackled urgently, and now researchers have made an important step in finding a solution.