Evolutionary reasons for believing in luck

How far will you go to avoid bad luck? Do you avoid walking under ladders, carry lucky charms, or perhaps instead perform special rituals before important meetings or sporting events?

What the world needs now? More wisdom

Revolution in Libya. Revolution in Egypt. Revolution in Tunisia. The Middle East and North Africa face unprecedented change as dictatorships crumble and people clamor for democracy.

The economics of smoking

(PhysOrg.com) -- Phil DeCicca studies the economics of one of the country's top killers - smoking. A health economist by trade, DeCicca researches the impact public policies have on the habits of smokers: Does the rate of ...

A smart use for wisdom teeth: Making stem cells

For most people, wisdom teeth are not much more than an annoyance that eventually needs to be removed. However, a new study appearing in the September 17 Journal of Biological Chemistry shows that wisdom teeth contain a valuable ...

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