Thursday, 24 May, 2012

Virologists have been working late since swine flu appeared in April. With flu running amok in South America, what can we expect when the epidemic returns north this fall?

Companies are marketing genetic tests direct to consumers. Some tests can be lifesavers. But many tests return confusing results, which even doctors have a hard time interpreting.

The epidemic fades, with 61 confirmed deaths and 5,251 cases so far. Were the public health warnings overdone? Or did they help stem the pandemic? Your guide to the time of finger-pointing, flu-style.

As the day wears on, both sleep pressure and the brain’s alerting signal rise, until sleep pressure triumphs. [Nod]. New brain study explains why night owls don’t get as sleepy during the day.

New video captures AIDS moving inside immune cells: HIV enters pods that form on the surface, then jumps across into a healthy immune cell that is now doomed to spread HIV — and die.

Pres. Obama has removed some limits on studies of cells that can become any body cell. What was lost in eight years of limits on embryonic stem cells? What’s ahead?

Happy Thanksgiving! We celebrate eating — and food. Hungry: Is that your “food clock” ringing? Why does a fruitfly need to smell? How does bitter taste to you? And could eating MSG make you fat?

What does science tell us about dealing with money? Can thinking about money change your behavior? How do monkeys gamble? Is ‘homo economicus’ truly rational? Do some people thrive on financial risks?

A single neuron in the brain may deliver enough information to control a muscle. These results could eventually help bypass the spinal cord, allowing paralyzed people to control their own muscles.

Dry macular degeneration affects 10+m Americans. After 10 years of research, embryonic stem cells approach the clinic!