>The causal relationship seems like a stretch here. For context, particles from PM2.5 can and apparently do enter the brain: https://www.theguardian.com/envir

>The causal relationship seems like a stretch here. For context, particles from PM2.5 can and apparently do enter the brain: https://www.theguardian.com/environment/2016/sep/05/toxic-air-pollution-particles-found-in-human-brains-links-alzheimers https://www.theguardian.com/environment/2016/sep/05/toxic-ai...