Brown clouds, injured neurons, acupuncture...

We explore the discovery of a gene that triggers nerve repair; research showing that 'fake' acupuncture has the same pain relief effect as real acupuncture; how the analysis of brown clouds over East Asia shows the main culprit to be burning biomass; how the discovery of an 18 million-year-old fossil challenges the theory of when New Zealand was undersea; why DNA previously thought to be "junk" isn't; how the study of the genetic variations in stomach bacteria describe human migration. Plus in 'Stuff and Non-Science', does watching TV really make you short-sighted?