Embryo :: Time-lapse recordings reveal why IVF embryos are more likely to develop into twins

Evidence gathered from time-lapse recordings of the formation of early embryos (blastocysts) in the laboratory has revealed why embryos created via IVF and undergoing extended culture are more likely to develop into twins than those created via natural conception. Furthermore, the research has shown that the culture in which the IVF embryos are formed is possibly responsible for the embryos dividing into twins.

Smoking :: New study shows exposure to smokers in movies increases likelihood of smoking in the future

A new study appearing in the July issue of Psychological Science, a journal of the Association for Psychological Science, reports that watching an actor smoke on the big screen may make smokers more likely to continue smoking in the future, and make nonsmokers more favorably disposed toward smoking.

Meningitis :: Improved meningitis vaccine for Africa could signal eventual end to deadly scourge

The Meningitis Vaccine Project (MVP) released new data on the performance of a meningitis vaccine in West African children, suggesting that the new vaccine?expected to sell initially for 40 US cents a dose?will be much more effective in protecting African children and their communities than any vaccine currently on the market in the region.