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Doctors in Spain claim a major breakthrough by giving a woman a new windpipe with tissue grown from her own stem cells.

In a major medical first, doctors have given a woman a new windpipe with tissue grown from her own stem cells, eliminating the need for anti-rejection drugs.

[The following is an exact transcript of this podcast.]Truth in advertising is a questionable concept, because it’s often self-serving to lie. Whether you’re talking about a used car salesman or a poisonous snake. No, they’re not the same thing. [More]

What is consciousness? What is this ineffable, subjective stuff--this thing, substance, process, energy, soul, whatever--that you experience as the sounds and sights of life, as pain or as pleasure, as anger or as the nagging feeling at the back of your head that maybe you’re not meant for this job after all. The question of the nature of consciousness is at the heart of the ancient mind-body problem. How does subjective consciousness relate to the objective universe, to matter and energy?Consciousness is the only way we experience the world. Without it, you would be like a sleepwalker in a deep, dreamless sleep, acting in the world, speaking, having babies, but without feeling anything. You would feel nothing, nada, nichts, rien. Indeed, in the most famous deduction of Western thought, philosopher and mathematician René Descartes concluded that because he was conscious he existed. That was his only unassailable proof that he wasn’t just a chimera. Maybe he didn&rsqu

Scientists in Leeds, UK, have devised a new way to create the next generation of man-made molecules in a breakthrough that could revolutionize drug development.

Human arrival in New Zealand led to the extinction of one penguin species to the advantage of another, scientists suggest.

While there is still a market for cigarettes — nearly 1 in 5 American adults smokes — that number has been steadily decreasing. So tobacco companies are investing in technology and research that could create a safer cigarette.

The popular supplement does not prevent or delay the onset of dementia, nor is it effective against Alzheimer's disease, says study

New research shows that gecko's joints rotated more quickly the greater the speed, and the swinging scope of forelimbs stayed nearly at 59 degrees when swinging forward. The lifting angle of forelimbs was always positive to keep the center of mass close to the surface when moving up vertical surfaces. Alternative gaits had little effect on the swing angle of hind limbs of the geckos moving on both horizontal and vertical surfaces.

The consumption of illicit or noncommercial alcohol is widespread in many countries worldwide and contributes significantly to the global burden of disease, according to a new report by the International Center for Alcohol Policies.