Oncology & Cancer

New model establishes guidelines for earlier cancer detection

Tumors can grow for 10 years or longer before currently available blood tests will detect them, a new mathematical model developed by Stanford University School of Medicine scientists indicates. The analysis, which was restricted ...

Medical research

Artificial human livers engineered for drug testing and discovery

The liver is an important target organ for drug testing because all drugs pass through it for detoxification. This is a process whereby harmful substances are reduced or removed from the body. Drugs that cannot be detoxified ...

Psychology & Psychiatry

Why we feel confident about decisions we make

Buying a second-hand car at a good price feels good. But choosing a delicious-looking doughnut in the supermarket leaves us riddled with doubt. After all, we resolved to eat a healthier diet this year—so wouldn't it be ...

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