▽nature.com ●11/21 20:11 New schizophrenia drug could treat Alzheimer’s diseaseHalf a dozen drugs are in trials for conditions of the brain, but success is not guaranteed.Your friends shape your microbiome — and so do their friendsAnalysis of nearly 2,000 people living in remote villages in Honduras reveals who’s spreading gut microorganisms to whom.Saima SidikDaily briefing: The fun of winning science’s satirical Ig