Dec. 8, 2018: Why are users taking fentanyl, making stuff with moon dust, an app to detect anemia and more ...

Why octopuses are smart, the real bad guy in Alzheimer’s and an absence of volcanoes?

Why octopuses are smart, the real bad guy in Alzheimer’s and an absence of volcanoes?

A new smartphone app can detect anemia by analyzing a photograph of your fingernail beds (Rob Mannino)
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