Letter: First class post

Published 14 September 2016

Are there concentrations of Alzheimer's disease with hotspots along major routes?
Sarah Hawkes outlines a follow-up to reports of air pollution sending tiny magnetic particles into our brains (10 September, p 10).

Issue no. 3091 published 17 September 2016

Subscribe
View in the app

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers.