Two new posts on the Scientific American Guest Blog today

First, in the morning, Hold that door, please! Observations on elevator etiquette by Krystal D’Costa (blog, blog, Twitter).

Second in the afternoon, Glia: The new frontier in brain science by R. Douglas Fields.

Go and post comments!

More tomorrow….then Monday and so on….if you are interested, pitch me a story at: Bora@sciam.com

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